J.R. is a 28-year-old man who was doing home repairs. He fell from the top of a 6-foot stepladder, striking his head on a large rock. He experienced a momentary loss of consciousness. By the time his neighbour got to him, he was conscious but bleeding profusely from a laceration over the right temporal area. The neighbour drove him to the emergency department of your hospital. As the nurse, you immediately apply a cervical collar, lay him on a stretcher, and take J.R. to a treatment room.
What steps will you take to assess J.R.?

J.R. is a $28$-year-old man who was doing home repairs. He fell from the top of a $6$-foot stepladder, striking his head on a large rock. He experienced a momentary loss of consciousness. By the time his neighbor got to him, he was conscious but bleeding profusely from a laceration over the right temporal area. The neighbor drove him to the emergency department of your hospital. As the nurse, you immediately apply a cervical collar, lay him on a stretcher, and take J.R. to a treatment room.

Differentiate between a primary and secondary head injury.

Study of why EMS workers leave the job. A study of fulltime emergency medical service (EMS) workers published in the Journal of Allied Health (Fall 2011) found that only about $3 \%$ leave their job in order to retire. (See Exercise $3.45$, p. 158.) Assume that the true proportion of all fulltime EMS workers who leave their job in order to retire is $p=.03$. In a random sample of 1,000 full-time EMS workers, let $\hat{p}$ represent the proportion who leave their job in order to retire. Describe the properties of the sampling distribution of $\hat{p}$.

J.R. is a 28-year-old man who was doing home repairs. He fell from the top of a 6-foot stepladder, striking his head on a rock. He experienced a momentary loss of consciousness. By the time his neighbor got to him, he was conscious but bleeding profusely from a laceration over the right temporal area. The neighbor drove him to the emergency department of your hospital. As the nurse, you immediately apply a cervical collar, lay him on a stretcher, and take J.R. to a treatment room.

You complete your neurologic examination and find the following: Glasgow Coma Scale (GCS) score of 15; pupils equal, round, reactive to light; and full sensation intact. J.R. complains of a headache and is somewhat drowsy. His vital signs are 120/72, 114, 30, $98.7^{\circ} \mathrm{F}\left(37.1^{\circ} \mathrm{C}\right)$, and $\mathrm{Spo}_2 94 \%$. As the radiology technician performs a portable cross-table lateral cervical spine $x$-ray examination, J.R. begins to speak incoherently and appears to drift off to sleep.

While waiting for the provider to arrive, J.R. becomes unresponsive to verbal stimuli. The right pupil is larger than the left and does not respond to light. J.R. responds to painful stimuli in the manner shown in the illustration. What immediate actions will you take?

J.R. is a 28-year-old man who was doing home repairs. He fell from the top of a 6-foot stepladder, striking his head on a rock. He experienced a momentary loss of consciousness. By the time his neighbor got to him, he was conscious but bleeding profusely from a laceration over the right temporal area. The neighbor drove him to the emergency department of your hospital. As the nurse, you immediately apply a cervical collar, lay him on a stretcher, and take J.R. to a treatment room. What steps will you take to assess J.R.?

J.R. is a $28$-year-old man who was doing home repairs. He fell from the top of a $6$-foot stepladder, striking his head on a large rock. He experienced a momentary loss of consciousness. By the time his neighbor got to him, he was conscious but bleeding profusely from a laceration over the right temporal area. The neighbor drove him to the emergency department of your hospital. As the nurse, you immediately apply a cervical collar, lay him on a stretcher, and take J.R. to a treatment room.

You complete your neurologic examination and find the following: Glasgow Coma Scale (GCS): $15$; pupils: equal, round, reactive to light; and full sensation intact. J.R. complains of a headache and is becoming increasingly drowsy. As the radiology technician performs a portable cross-table lateral cervical spine x-ray, J.R. begins to speak incoherently and appears to drift off to sleep.

What are the next actions you will take?

J.R. is a 28-year-old man who was doing home repairs. He fell from the top of a 6-foot stepladder, striking his head on a large rock. He experienced a momentary loss of consciousness. By the time his neighbour got to him, he was conscious but bleeding profusely from a laceration over the right temporal area. The neighbour drove him to the emergency department of your hospital. As the nurse, you immediately apply a cervical collar, lay him on a stretcher, and take J.R. to a treatment room.
What types of injuries may J.R. have sustained?

J.R. is a $28$-year-old man who was doing home repairs. He fell from the top of a $6$-foot stepladder, striking his head on a large rock. He experienced a momentary loss of consciousness. By the time his neighbor got to him, he was conscious but bleeding profusely from a laceration over the right temporal area. The neighbor drove him to the emergency department of your hospital. As the nurse, you immediately apply a cervical collar, lay him on a stretcher, and take J.R. to a treatment room.

You find that J.R. has become unresponsive to verbal stimuli and responds to painful stimuli by abnormally flexing his extremities (decorticate movement). He has no verbal response. The right pupil is larger than the left and does not respond to light.

You summon the physician. Based on the GCS score, what are the next steps you will take?

Three-year-old C.E. is admitted to the Emergency Department (ED) fast track clinic. Her mother tells the nurse that C.E. has had a low-grade fever for $2$ days and is complaining of ear pain and a sore throat. Mrs. E. states that C.E.'s appetite has been “off,” but she has been drinking and using the bathroom as usual.

Mrs. E. is given a new prescription for azithromycin (Zithromax) PO $160$ mg qd $\times$ $5$ days.

5. Azithromycin is dispensed $200$ mg/$5$ mL. Calculate the dosage for Mrs. E. to administer to C.E

J.R. is a 28-year-old man who was doing home repairs. He fell from the top of a 6-foot stepladder, striking his head on a rock. He experienced a momentary loss of consciousness. By the time his neighbor got to him, he was conscious but bleeding profusely from a laceration over the right temporal area. The neighbor drove him to the emergency department of your hospital. As the nurse, you immediately apply a cervical collar, lay him on a stretcher, and take J.R. to a treatment room. List at least 6 components of a neurologic examination.

Forty patients were asked how many minutes they had to wait in an emergency department before they were seen by a doctor. The results are below. Construct a frequency distribution table using five classes.
32 40 66 51 28 35 30 45 49 33
37 41 56 43 59 60 32 48 56 55
50 29 44 54 64 65 49 34 39 30
36 34 47 52 43 47 58 31 61 29

A traffic engineer determines that the number of cars passing through a certain intersection each week can be modeled by $C(x)=0.02x^3+0.4x^2+0.2x+35$, where x Is the number of weeks since the survey began. A new road has just opened that affects the traffic at that intersection. Let $N(x)=C(x)+200$.
Emergency roadwork temporarily closes off most of the traffic to this intersection. Write a function R(x) that could model the effect on C(x) Explain how the graph of C(x) might be transformed into R{x).

A group of hikers is lost in a national park. Two ranger stations have received an emergency SOS signal from the hikers. Station B is 75 miles due east of station A. The bearing from station A to the signal is S 60° E and the bearing from station B to the signal is S 75° W. A rescue party is in the park 20 miles from station A at a bearing of S 80° E. Find the distance and the bearing the rescue party must travel to reach the lost hikers.

A defibrillator is used by emergency medical staff to shock the heart of an accident victim by applying a 10,000- $\mathrm{V}$ potential difference across the victim's chest.

(a) If the defibrillator has an internal resistance of $10 \Omega$ and the victim's heart has a resistance of $300 \Omega$, what is the current that passes through the victim's heart the moment the defibrillator is discharged?

(b) If the defibrillator delivers this current over a $10-\mathrm{ms}$ time interval, how many electrons pass through the heart during this process?