When preparing to move a patient in bed, what will the nurse do first?
A. Assemble adequate help to move the patient. B. Assess the patient's ability to help with moving. C. Determine the patient's weight. D. Decide on the most effective means of moving the patient.
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B. Assess the patient's ability to help with moving.
Rationale: Assessing the patient's ability to help is the first thing the nurse must do, since the answer determines how much help is needed with the move. The patient's weight is important to know, but it is not the first action the nurse must take. The most effective means of moving the patient will be determined in part by whether the patient is able to help.
Assisting with Moving a Patient in Bed
Assisting with Positioning a Patient in Bed
Assisting with the Use of Canes, Walkers, and Crutches
Transferring from a Bed to a Wheelchair Using a Transfer Belt
Transferring from a Bed to a Stretcher
Performing Range-of-Motion Exercises
Assisting with Ambulation Using a Gait Belt
Using a Hydraulic Lift
B. Assess the patient's ability to help with moving.
Rationale: Assessing the patient's ability to help is the first thing the nurse must do, since the answer determines how much help is needed with the move. The patient's weight is important to know, but it is not the first action the nurse must take. The most effective means of moving the patient will be determined in part by whether the patient is able to help.
Rationale: Flexing the hips and knees is the safest posture for both caregivers to assume when moving a patient in bed. Standing with the knees locked could injure the legs or the back. Standing with the feet together could injure the legs or the back. The body weight should be shifted from the back leg to the front leg.
A patient who weighs 200 lbs. needs to be moved up in bed with the aid of a friction-reducing device. The nurse will prepare for this move by assembling how many caregivers?
A. A minimum of two B. None, since the device does all the lifting during the move C. At least three D. The nurse can carry out this move without assistance
C. At least three
Rationale: Since a friction-reducing device will be used and the client weighs 200 lbs., a minimum of three to four people are needed to move this patient safely. The device does not function independently, and the nurse cannot use it without the help of other caregivers. The nurse cannot carry out this move by himself or herself.
Rationale: Placing the patient in the supine position with the head of the bed flat is the recommended position to use to move a patient up in bed. The patient should not be supine with the head of the bed at a 30-degree angle, sitting, or prone when being moved up in bed.
A patient will be moved up in bed with the use of a friction-reducing device. How will the nurse place this device under the patient?
A. Lift the patient to place the device directly under him or her. B. Remove the drawsheet, and replace it with the device. C. Roll the patient from side to side, and place the device under the drawsheet. D. Sit the patient up in the bed, and place the device behind the shoulders.
C. Roll the patient from side to side, and place the device under the drawsheet.
Rationale: The patient will be rolled from side to side and the device placed under the drawsheet. The patient is not lifted in order to place the device under him or her. The device must be placed under the drawsheet. The device must be behind the entire length of the patient, and not just placed at the level of the shoulders.
Rationale: A trochanter roll is placed alongside the patient's legs to prevent external rotation of the hips, which contributes to contracture. The placement of a trochanter roll alongside the patient's legs will not reduce the risk of a fall while the side rails are down. The side rails must be raised to prevent the patient from falling. Although a trochanter roll placed alongside the patient's legs may assist to control pain and provide cushion to the legs, it is not the primary reason a trochanter roll is placed alongside of patient's legs.
Rationale: In the Fowler's position the head of the bed is elevated and maximal breathing space in the thoracic cavity is promoted. Fowler's is the position of choice for a patient having breathing difficulties. A Sims' position would not facilitate maximal breathing space and respirations would be difficult for the patient. The 30-degree lateral or side-lying position requires the head of bed to be lowered completely or as low as the patient can tolerate. The patient is positioned on the side. Lying on the side will not promote maximal breathing space and respirations would be difficult for the patient. In the prone position, the patient is positioned flat and on the abdomen. Lying flat on the abdomen would not facilitate respirations and is a difficult position for the patient to maintain.
The nurse is preparing to move a patient with hemiplegia into the prone position. What action should the nurse take when rolling the patient onto her side?
A. Place a small pillow under the shoulder. B. Use the affected arm as a guide during rolling. C. Place a pillow on the abdomen. D. Place rolled bath blankets along the dependent leg.
C. Place a pillow on the abdomen.
Rationale: When rolling a patient with hemiplegia onto her side while moving into the prone position, the nurse should place a pillow on the patient's abdomen. Placing a small pillow under the shoulder will not help when rolling a patient with hemiplegia onto her side while moving into the prone position. The nurse should not use the affected arm as a guide when rolling a patient with hemiplegia onto her side while moving into the prone position. The nurse should not place rolled bath blankets along the dependent leg when rolling the hemiplegic patient onto her side while moving into the prone position.
Rationale: Two assistants are needed to roll the patient as a unit, using one smooth, continuous motion. One assistant grasps the draw sheet at the lower hips and thighs, and the other assistant grasps the draw sheet at the patient's shoulders and lower back. The pillows are positioned by the nurse who is standing on the side from which the patient was turned. Two assistants are not needed to keep the patient's spine straight while logrolling a patient. Two assistants are not needed to ease the patient back onto the support pillows.
An otherwise strong, healthy patient with a lower leg cast is learning to ambulate with axillary crutches. Which gait is most appropriate?
A. Any gait is appropriate
B. Four point gait
C. Three point gait
D. Two point gaitC. Three point gait
Rationale: The four-point gait approximates a normal step pattern, is stable, and requires low energy expenditure. The patient must be able to bear weight on both feet. The three-point gait is the least stable pattern and requires balance, coordination, and strength. This pattern is tiring but allows for rapid ambulation. The two-point pattern is used when additional gait stability is needed; the patient must be able to bear full weight on both legs. Because the patient cannot bear weight on one leg, the three point gait is the most appropriate, as the two point and four point gaits require weight bearing on both legs.Where do the patient's feet stop when performing the swing-through crutch gait?
A. Before reaching the crutch tips
B. Level with the crutch tips
C. Past the crutch tips
D. The patient does not put his feet downC. Past the crutch tips
Rationale: During the swing-through gait, the patient advances both crutches, then lifts and swings both legs past the crutch tips. During the swing-to gait, the patient advances both crutches, then lift and swing both legs to the crutch tips. The patient does not stop before reaching the crutch tips. The patient does place his feet on the ground at the end of the movement.The nurse is teaching a patient who has crutches how to sit down in a chair. In which hand should the patient hold both crutches?
A. The patient's dominant hand
B. The patient's nondominant hand
C. The hand on the injured side
D. The hand on the uninjured sideC. The hand on the injured side
Rationale: Hold the patient's gait belt and had the patient back up until the patient feels the seat of the chair against the back of his or her legs, then move the weak leg forward and balance on the strong leg. Have the patient transfer both crutches to one hand on the injured side. Instruct the patient to grasp the arm of the chair with his or her free hand and lower body onto the seat.In the United States, forearm crutches are generally used by patients with which types of conditions?
A. Fractures of the lower extremities
B. Fractures of the upper extremities
C. General weakness or paraplegia
D. Weight-bearing restrictions to the lower extremitiesC. General weakness or paraplegia
Rationale: Generally, axillary crutches are used temporarily by patients with weight-bearing restrictions to the lower extremities, such as a leg fracture, while forearm crutches are used long term by patients with conditions such as general weakness or paraplegia. Crutches are used to remove weight from a lower extremity by transferring the weight to the upper extremities, therefore crutches are not appropriate for patients with upper extremity fractures.A patient requires only minimal assistance with ambulation. Which assistive device would be most appropriate?
A. A cane
B. A walker without wheels
C. A wheeled walker
D. crutchesA. A cane
Rationale: A standard cane, also called a straight cane, is used with patients who need only minimal assistance with ambulation. A walker has four wide-placed legs and is the assistive device that provides the greatest support for ambulation. Crutches are used to remove weight from a lower extremity by transferring the weight to the upper extremities. Generally, axillary crutches are used temporarily by patients with weight-bearing restrictions to the lower extremities, while forearm crutches are used long term by patients with conditions such as general weakness or paraplegia.When preparing to safely transfer a patient from a bed to a wheelchair using a transfer belt, the nurse would do what first?
A. Coordinate extra help.
B. Assess the patient's vital signs.
C. Assess the patient's physiological capacity to transfer.
D. Determine whether to transfer the patient to a wheelchair or chair.C. Assess the patient's physiological capacity to transfer.
Rationale: Assessing the patient's physiological capacity to transfer determines the patient's ability to tolerate and assist with the transfer and whether special adaptive techniques are necessary. The nurse must determine whether extra help is needed before arranging for such assistance. Assessing vital signs is not the first action the nurse would take. Determining whether to transfer the patient to a wheelchair or chair is not the first action the nurse would take.Which instruction would the nurse give a patient who is able to assist with transfer from a bed to a wheelchair using a transfer belt?
A. "When I count to three, please rock yourself into a standing position."
B. "Please hold on to my waist while I help you stand."
C. "Please tell me how I can best help you get up off the bed and stand up."
D. "Please push down onto the mattress with both hands and stand when I count to three."D. "Please push down onto the mattress with both hands and stand when I count to three."
Rationale: Telling the patient to push against the mattress is the best instruction the nurse can give because it teaches the patient how to help achieve a standing position during the transfer. The patient and nurse rock together for three counts. The patient would not be instructed to hold on to the nurse's waist. Doing so is not a safe action. Asking the patient to advise the nurse does not instruct the patient on moving from the bed to a wheelchair.A patient lying supine in bed is being transferred to a wheelchair using a transfer belt. Which action would the nurse perform just before moving the patient to the side of the bed?
A. Help the patient put on skid-resistant footwear.
B. Raise the head of the bed 30 degrees.
C. Place the transfer belt over the patient's clothing.
D. Position the chair so that the patient will move toward his or her stronger side.B. Raise the head of the bed 30 degrees.
Rationale: The nurse would raise the head of the bed 30 degrees right before moving the patient to the side of the bed. Footwear and the transfer belt would not be applied at this point in the process. The wheelchair would already be in position at this point in the process.The nurse is preparing to transfer a patient with left-sided weakness from the bed to a wheelchair using a transfer belt. Which position would the nurse instruct the patient to assume?
A. Place both feet together on the floor.
B. Place your weaker foot forward and your stronger leg toward the back.
C. Extend both of your legs and feet.
D. Place your stronger leg forward and your weaker leg toward the back.D. Place your stronger leg forward and your weaker leg toward the back.
Rationale: The nurse will instruct the patient to place the stronger leg forward, with the weaker foot toward the back, allowing the stronger leg to support most of the patient's body weight. Placing both feet together on the floor will not help the patient stand safely. Placing the weaker foot forward places the stronger leg in the dependent position. The weaker leg, called upon to bear the bulk of the patient's weight, may not be able to do so. Extending both of the legs and feet will not help the patient stand safely.A patient has been transferred to a wheelchair with a transfer belt. What is one action the nurse would take to position the patient safely in the chair?
A. Remove the wheelchair leg rests.
B. Ask the patient to rate his or her pain level.
C. Lower the foot rests, and place the patient's feet on them.
D. Remove the transfer belt.C. Lower the foot rests, and place the patient's feet on them.
Rationale: The nurse lowers the foot rests and places the patient's feet on them once the patient has been positioned in the wheelchair. Doing so supports the patient's feet and keeps them from dragging and creating a falling hazard when the chair is moved. Removing the leg rests will not help position the patient safely in the wheelchair. Asking about the patient's pain is not relevant to safe positioning, since a patient may be comfortable even when positioned unsafely. Removing the transfer belt will not help position the patient safely in the wheelchair.The nurse is preparing to use a slide board to transfer a patient from the bed to a stretcher. How many additional people will the nurse need to help with this transfer?
A. Four
B. Two
C. One
D. NoneB. Two
Rationale: The nurse will need two additional people to help move this patient. Three nurses are recommended for a slide board transfer. The nurse does not need four additional people to help transfer this patient. The nurse needs more than one additional person to help move this patient. The nurse cannot perform this move without assistance.The nurse is preparing to move a patient from the bed to a stretcher. What will the nurse do first?
A. Cross the patient's arms over his or her chest.
B. Lower the side rails of the bed.
C. Make sure the bed brakes are locked.
D. Fanfold the draw sheet.C. Make sure the bed brakes are locked.
Rationale: The nurse's first action would be to verify that the bed brakes are locked prior to moving the patient. Crossing the patient's arms over the chest is done after the head of the bed is lowered. Lowering the side rails of the bed occurs after the bed brakes are locked. The draw sheet would be fanfolded after the bed brakes are locked.When turning a patient to place a slide board, where do the assistants stand?
A. At the side of the bed to which the patient will be turned
B. At the side of the bed from which the patient will be turned
C. At the head and foot of the bed
D. At the foot of the bed onlyA. At the side of the bed to which the patient will be turned
Rationale: When turning a patient to place him or her on a slide board, the assistants stand on the side of the bed to which the patient will be turned. Positioning assistants on the side of the bed from which the patient will be turned is not helpful. Positioning assistants at the head or foot of the bed is not helpful. Positioning assistants at the foot of the bed is not helpful.The nurse and his or her assistants are using a slide board to move a patient from the bed to a stretcher. The nurse, standing alone on the side of the bed opposite the stretcher, will perform which action during this move?
A. Hold the slide board.
B. Pull the draw sheet.
C. Hold the patient's head stationary.
D. Lock the brakes on the stretcher.A. Hold the slide board.
Rationale: The nurse, standing alone, will hold the slide board in place as the two assistants pull the draw sheet. The nurse will not hold the patient's head during the move; this action may be performed by an optional assistant. The nurse cannot lock the brakes on the stretcher while standing on the opposite side of the bed. The brakes should be locked prior to the transfer of the patient.After moving a patient from the bed to a stretcher, what will the nurse do next?
A. Lock the wheels on the stretcher.
B. Cover the patient with a blanket.
C. Raise the head of the stretcher if doing so is not contraindicated.
D. Unlock the wheels of the bed.C. Raise the head of the stretcher if doing so is not contraindicated.
Rationale: The nurse raises the head of the stretcher if doing so is not contraindicated. The wheels of the stretcher will have been locked before moving the patient from the bed to the stretcher. Covering the patient with a blanket will occur after the side rails are raised on the stretcher. Unlocking the wheels of the bed is not an action the nurse will take after transferring a patient from the bed to the stretcher.Which patient is most at risk of developing permanently impaired mobility?
A. A 72-year-old woman hospitalized for anemia associated with diabetic nephropathy (kidney disease)
B. A 55-year-old woman with mental illness who had become malnourished
C. An 11-year-old boy who sustained a fractured pelvis during a fall from his tree house
D. A 79-year-old man recovering from surgery to release a contracture of the connective tissue in his handA. A 72-year-old woman hospitalized for anemia associated with diabetic nephropathy (kidney disease)
Rationale: Although the 72-year-old woman's anemia will not affect her mobility, she is the patient most at risk of mobility impairment. The fact that she has diabetes, a serious chronic condition, puts her at high risk of mobility impairment. In addition, her age is a risk factor, since mobility impairment is more prevalent among older adults. Poor nutritional status is a risk factor for mobility impairment; however, the 55-year-old female patient has no other known risk factors. Her mental illness is irrelevant to her risk of mobility impairment, except as it affects her ability to follow her provider's dietary instructions and comply with her medication schedule after discharge. The 11-year-old boy may experience adverse consequences of impaired mobility, such as altered self-concept, diminished self-esteem, and depression. He may become restless or even show signs of aggression. It is unlikely, however, that his mobility will be permanently compromised after he recovers from his traumatic injury. The 79-year-old male patient's age puts him at risk of mobility impairment; however, he has no other known risk factors.The nurse is performing passive shoulder and elbow exercises for a patient who is recovering from surgery to remove a soft-tissue tumor in her upper arm. Why does the nurse cup one hand around the patient's elbow and support the forearm and wrist during the ROM exercises?
A. To keep the arm above the level of the heart
B. To assess the patient's muscle tension
C. To listen for crepitus in the joint
D. To ensure stability while exercising the jointD. To ensure stability while exercising the joint
Rationale: The nurse supports the distal portion of the extremity in order to ensure joint stability. It is not necessary to keep the arm above the level of the heart. Muscle tension is not assessed while performing passive ROM exercises. This patient is recovering from surgery to remove a soft-tissue tumor, which would not cause crepitus, a grating sound produced as the ends of long bones rub together in a patient with arthritis.The nurse notes that a patient's left elbow is resistant to extension and flexion while performing range of motion exercises. What is the appropriate nursing action?
A. Move the joint through the full range of motion exercises.
B. Perform range of motion to the left elbow until resistance is met.
C. Omit all the range of motion exercises until the health care provider is notified.
D. Inform the health care provider that the patient is uncooperative with exercising.B. Perform range of motion to the left elbow until resistance is met.
Rationale: The nurse would stop the range of motion exercises because resistance is met. The range of motion exercises should not continue until pain is felt by the patient. The nurse would not move the left elbow joint through the full range of motion because resistance is met. Range of motion exercises should not be omitted. When you note resistance within a joint, do not force the joint motion. Consult with the health care provider or a physical therapist. The nurse would not notify the health care provider without information to support the patient is uncooperative with exercising.Which of the following are basic guidelines when assisting a patient with passive range of motion?
A. Exercises should be continued until the point of fatigue and pain.
B. Exercises should be done frequently to lessen pain for the patient.
C. Each joint is exercised to the point of resistance but not pain.
D. Exercises should be performed without the support to each joint.C. Each joint is exercised to the point of resistance but not pain.
Rationale: Joints should be exercised slowly, smoothly, and rhythmically to the point of resistance, but pain should not be felt by the patient. Uncomfortable reactions should be reported. Joints should never be exercised to the point of fatigue or pain. Exercises should be done twice a day to improve joint mobility and increase circulation. Pain will not be lessened with exercising. Pain should not be felt by the patient. Use a variety of support measures, cupping with your hand under joint or cradling the distal portion with arm. Support measures prevent muscle strain or injury to the patient.Why would the nurse ask a physical therapist to perform passive ROM exercises for a patient with lower extremity injuries sustained in a motor vehicle crash?
A. The patient is an older adult or has a chronic condition.
B. The patient is reluctant to perform the exercises because he is worried about reinjury.
C. The patient has orthopedic trauma.
D. The patient has pain exacerbated by exercise.C. The patient has orthopedic trauma.
Rationale: Specialized expertise is usually required to perform passive ROM exercises for a patient with orthopedic trauma or spinal cord injury. The patient's age or the existence of a chronic medical condition generally does not necessitate additional expertise. If a patient is concerned about injury, the nurse can address the patient's anxiety by explaining the procedure, easing into the exercises, and offering continual reassurance. If the provider is aware that the patient's pain is worse with exercise and the provider nevertheless orders the exercise, the nurse can offer pain medication before the intervention, as prescribed, and exercise the patient as tolerated.The nurse is helping a patient with hemiparesis take a few steps. A gait belt has been applied. The patient is using a cane. Where should the nurse stand in relation to the patient?
A. On the patient's strong side
B. On the patient's weak side
C. Behind the patient
D. In front of the patientB. On the patient's weak side
Rationale: The patient's weak side would need support if the patient begins to fall. Stand on the patient's weak side. The strong side has no need of support from the nurse. Standing behind the patient or in front of the patient would provide no support to the patient if the patient begins to fall.The nurse is preparing to initiate ambulation with a patient who is recovering from a stroke. What information will help the nurse determine how far to walk?
A. Ask the patient how far she would like to go.
B. Review the health care provider's order.
C. Review the medical record to see how far the patient has walked during the past several therapeutic ambulations.
D. Review the records of other patients who are at a similar point in their stroke rehabilitation.A. Ask the patient how far she would like to go.
Rationale: Setting mutual goals increases the likelihood of success in achieving the goal of ambulation. The health care provider's order will only state "ambulate"; it will not specify how far to ambulate the patient. The patient's circumstances or condition may not be similar to those he or she undertook during the past several ambulations. Patient care should be individualized. The status of other patients in stroke rehabilitation is not relevant to this patient.The nurse has applied a gait belt to a postoperative patient to facilitate ambulation. Within a few feet of the bed, the patient begins to complain of dizziness and leans heavily on the nurse. What would be the nurse's initial response?
A. Slowly lower the patient to the floor.
B. Attempt to sit the patient down on a chair just a few steps away.
C. Try to hold the patient up until the dizziness passes.
D. Call for assistance in a loud but calm voice.A. Slowly lower the patient to the floor.
Rationale: The safest action would be for the nurse to slowly lower the patient to the floor. The patient is already leaning heavily on the nurse, and attempting to ambulate him or her even a few steps may injure the patient, the nurse, or both. Attempting to sit the patient down on a chair or trying to hold up a patient to keep him or her from falling is never a safe action for either the nurse or the patient. Calling for assistance is not an appropriate initial response and does not provide immediate safety for the patient.The nurse is preparing to delegate the ambulation of a patient with the use of a gait belt to nursing assistive personnel (NAP). Which statement made by NAP requires the nurse to follow up?
A. "I will be sure to put nonskid slippers on the patient before getting him up to ambulate."
B. "I will use the under-axillae technique to help him up to a standing position."
C. "Rocking the heavier patient into a standing position seems to work really well for me."
D. "I will grasp the gait belt in the middle of the patient's back."B. "I will use the under-axillae technique to help him up to a standing position."
Rationale: Using the under-axillae technique is not a safe lifting technique, so this statement requires the nurse to follow up. Applying nonskid socks or slippers will help minimize the risk of falling, so this statement does not require the nurse to follow up. The rocking technique gives the patient's body momentum and helps facilitate standing, so this statement does not require the nurse to follow up. If the patient begins to fall, the grasping of the gait belt provides support at the patient's waist (so the center of gravity remains midline) and allows the nurse to move him or her to the stronger side and reduce injury.The nurse is ambulating a patient with a gait belt when he says he feels sick to his stomach. What would the nurse do?
A. Return the patient to the bed or chair (whichever is closer).
B. Encourage the patient to complete the distance of ambulation.
C. Help him to the restroom.
D. Ease him to the floor.A. Return the patient to the bed or chair (whichever is closer).
Rationale: Returning the patient to the bed or chair allows patient to rest, and the nausea may subside. Encouraging the patient to complete the distance of ambulation does not focus on the patient's need to relieve nausea. The patient may become more nauseated, become weak or dizzy, and begin to fall. Helping the patient to the restroom does not focus on immediate need; it may require more exertion to reach the restroom, resulting in increased nausea. The patient's nausea indicates that the ambulation is not being well tolerated. Ease the patient to the floor only if the nausea is accompanied by dizziness or lightheadedness causing the patient to begin to fall.When preparing for safe patient transfer using a hydraulic lift, the nurse performs which action first?
A. Assesses the patient for weakness, dizziness, or postural hypotension
B. Arranges for at least three healthcare personnel to assist in the transfer
C. Makes sure the patient agrees to the intervention
D. Applies clean glovesA. Assesses the patient for weakness, dizziness, or postural hypotension
Rationale: Assessing the patient for weakness, dizziness, or postural hypotension will help ensure the patient's safety. Two nurses or NAP can safely transfer a patient with a hydraulic lift. The assistance of three healthcare personnel is not necessary. Securing the patient's agreement does not help the nurse prepare for a safe transfer. It is not necessary to wear gloves while transferring a patient with a hydraulic lift.Which position is used when applying the sling to transfer a patient from the bed to a chair with a hydraulic lift?
A. Prone
B. Side-lying
C. Supine
D. SimsC. Supine
Rationale: The patient is placed in the supine position before he or she is transferred from the bed to a chair with a hydraulic lift. Prone, side-lying, and Sims are not positions used to transfer a patient with a hydraulic lift.Which action would decrease a patient's pain before a transfer with a hydraulic lift?
A. Stop the transfer if the patient expresses or displays physical signs of pain.
B. Explain the procedure to the patient before beginning the transfer.
C. Administer a prescribed analgesic 30 to 60 minutes before the transfer.
D. Postpone the transfer if the patient reports having physical pain or anxiety before the transfer.C. Administer a prescribed analgesic 30 to 60 minutes before the transfer.
Rationale: Administering a prescribed analgesic 30 to 60 minutes before the transfer helps prevent unnecessary pain during the transfer by allowing time for the medication to take effect before the patient is moved. The remaining actions do not pertain to pain prevention.What does the nurse do after attaching the hooks to the holes in the sling on a hydraulic lift?
A. Lower the head of the bed.
B. Remove the patient's eyeglasses.
C. Have the patient cross the arms over the chest.
D. Elevate the head of the bed.C. Have the patient cross the arms over the chest.
Rationale: The patient's arms are crossed over the chest after attaching the hooks to the holes in the sling. The head of the bed is elevated immediately before the hooks are attached to the sling. The head of the bed is lowered before the sling is placed under the patient. If the patient wears eyeglasses, they are removed before the hooks are attached to the sling.When using a hydraulic lift to transfer a patient from the bed to a chair, when does the nurse turn off the check valve?
A. After the patient crosses the arms over the chest
B. After the patient's eyeglasses are removed
C. As soon as the patient has been placed in the chair
D. When the nurse removes the strapsC. As soon as the patient has been placed in the chair
Rationale: The nurse turns off the check valve as soon as the patient has been placed in the chair. After the patient crosses the arms over the chest and the eyeglasses are removed, the patient has not yet been moved to the chair, so the nurse does not turn off the check valve at these steps. By the time the nurse removes the straps, the check valve already will have been turned off.