laboratory & blood collection procedures chapter 4
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173 terms
Terms | Definitions |
|---|---|
 approximately 1 % of whole blood | in a normal hematocrit,the buffy coat accounts for |
| alcohol | which of the following is generally used to cleanse the skin before drawing blood |
| alcohol | inaccurate test results may occur in certain tests when what is used to prepare the skin prior to venipuncture |
| give the patient a high carbohydrate drink immediately after the first blood draw | which of the following would be part of the preparation for an oral glucose tolerance |
| soap and water | which of the following is used to prepare the skin before a venipuncture when alcohol causes inaccurate results for certain tests |
| 2 | after how many unsuccessful attempts at obtaining a good blood sample should you seek assistance from your supervisor or the doctor |
| the heel | the best site for drawing blood from an infant is |
| gather your supplies and samples quickly as possible to avoid alarming the child with blood-collection tubes | which of the following is important when drawing blood from children |
| recognize changes in skin conditions that increase bruising | which of the following is important when drawing blood from an elderly patient |
| median cubital and cephalic veins | the most common sites for venipuncture are the |
| fluid and electrolyte imbalances | blood test for potassium and sodium identify |
| anemia | an erythrocyte count(RBC) test is used to identify |
| kidney disorders | a blood urea nitrogen(BUN) test is used to identify |
| cleanse the venipuncture site using a circular motion starting at the center and working outward | which of the following would you include when preparing a venipuncture site |
| insert the needle at 15 degree angle with the bevel side up | which of the following would you include when performing a venipuncture using an evacuation system |
| lancet | which of the following is used in the capillary puncture technique |
| the patients non-dominant hand is used for this procedure | which of the following is characteristic of the capillary puncture |
| the needle and syringe system | which method of drawing blood would you use on a patient with small or fragile veins |
| the capillary puncture | which procedure for obtaining a blood sample in adults and children is usually performed on the middle or ring finger |
| the evacuation system | which blood collection device uses interchanageable collection tubes that allow you o draw several blood specimens from the same venipuncture site |
| they are small disposable instruments with a sharp point used to puncture the skin | which of the following us characteristics of lancets |
| micropipette | a small calibrated glass tube that holds a precise volume of fluid is called a |
| 136-145 mEq/l | the normal sodium blood level is |
| 11-15 seconds | normal prothrombin time (PT) is |
| 3.5-5.1 mEq/l | the normal range for potassium in the blood is |
| 74-120 mg/dl | the normal blood glucose level is |
| total cholesterol | which blood test identifies coronary artery disease and atherosclerosis |
| uric acid | gout is identified by which type of blood test |
| sharps container | a puncture resistant leak-proof container used to dispose of needles,lancets,and other sharp objects is called a |
| all of the choices | which of the following factors result in failure to draw blood during venipuncture |
| HIV infection | enzyme-linked immunosorbent assay(ELISA) and western blot test are used to confirm which of the following disorders |
| antigens | a substance that when present on the surface of red blood cells causes the formation antibodies that interact specifically with it are called |
| hemocytometer | which of the following is a special piece of equipment that allows one to count blood cells by examining a diluted blood sample under a microscope |
| hematocrit determination | which of the following identifies how much of the volume of a sample is made up of red blood cells after the sample has been spun in a centrifuge |
| analyze hormone levels | to evaluate the endrocine system, one would |
| all of the choices | which of the following may cause changes in basal state |
| a differential | a percentage of each type of white blood cell in a total of 100 white cells observed is referred to as |
| incubation | maintenance at a specific temperature for a specific amount of time until growth or a reaction occurs is |
| 6 months | the general lab centrifuge (GLC) is calibrated every |
| bleeding time | the ivy method and the duke method are used to measure |
| ketosis | an accumulation in the body of substance, known as ketones which may be detected by testing urine,commonly observed in starvation,pregnancy and diabetes is |
| evaluating anticoagulant drugs | the laboratory test for prothrombin time would be for |
| assessing risk of coronary heart disease | the laboratory test for cholesterol would be |
| assessing hemostasis | the laboratory test for bleeding time would be for |
| detecting inflammation or infection | the laboratory test for a white blood cell count would be for |
| beginning of each day | the temperature of the centrifuge is checked at the |
| assessing glomerular filtration rate | the laboratory test for creatinine would be for |
| 1.5 mm | for capillary collection from infants, a lancet with which of the following lengths should be used to avoid penetrating the bone |
| forming a clot | anticoagulants prevent the blood from |
| apply pressure to the site | if during the course of a venipuncture, the patient starts to bleed severely, you should |
| 40 mm hg | for the surgical bleeding time test, the blood pressure cuff must be inflated on the patients upper arm to |
| all of the choices | the phlebotomist would play an active role in patient education for which of the following procedures |
| aiding in diagnosis of anemia | the laboratory test for hematocrit would be for which of the following |
| diagnose bacteremia | the laboratory test for a blood culture is used for which of the following |
| glucose tolerance | the test that is required to test the patients insulin releasing mechanism is called |
| both b and c triglyceride cholesterol | a fasting blood specimen is needed for which of the following clinical laboratory |
| collecting blood through CVC's | of the following lab test, which procedure requires 10mL normal saline and 2 or 3-20 M1 disposable syringes |
| vitamin k | the prothrombin in the blood clotting process is dependent upon which of the follwoing |
| both a and b confirming diabetes mellitus hypoglycemia | the laboratory test for glucose tolerance would be |
| bromsulphalein dye | which of the following dyes would be used to test a patients liver function |
| meningities | spinal fluid cultures are used to determine |
| all of the above | a centrifuge is a piece of laboratory equipment used for which of the following |
| bilirubin | which of the following blood chemical constituents is light sensitive |
| hemoconcentration | when blood is collected from a patient the serum should be separated from the blood cells as quickly as possible to avoid |
| lab results are unreliable if specimens are collected | after ingestion of alcohol |
| synovial fluid | which of the following fluid is extracted from joint cavitites |
| antecubital fossa | the most common site to perform a ventipuncture, or the bend of the arm is called |
| anisocytosis | a state of abnormal variations is the size of red blood cells in the blood is |
| all of the above | which of the following items are needed to collect a blood culture specimen |
| all of the above | a prolonged bleeding time for a patient may be caused by the patients intake of |
| all of the choices | if a blood specimen is allowed to clot,without added anticoagulant this is what remains |
| to avoid excessive bleeding | why is it necessary to control the depth of a lancet insertion during skin puncture |
| all of the choices | which of the following conditions listed affect laboratory test on blood specimens |
| all of the choices | hemoconcentration can be caused by |
| buffy coat | a light colored layer of leukocytes and platelets which forms on the top of the red cell layer when a sample of blood is centrifuged or allowed to stand |
| bleeding and platelet | two primary test for platelet activity are the ___ time,which is used to assess platelet function, and the ___ count, whcih evaluates platelet production |
| increase localized blood flow | what effect does warming the site have on venipuncture |
| needle bevel is partially inserted in the vein | hematoma during venipuncture results from which of the following |
| median cubital vein | of the following veins which would be most frequently used for venipuncture |
| hollander test | the test that require passing a tube through the patients nose is called |
| the time required for erythrocytes to settle to the bottom of an upright tube at room temperature | the laboratory test for sedimentation rate is described as |
| both a and b rubber hose blood pressure cuff | which of the following are tourniquets used in venipuncture |
| 3 major components | if a tube of blood is allowed to stand undisturbed, it will separate into |
| antiserum | serum that contains antibodies is referred to as |
| hemostasis | the rapid sequence of vascular spasm,platelet plug formation and coagulation is known as |
| 4 | how many counting chambers are used to count white blood cells |
| all of the above | which of the following would be reason to reject a specimen for testing |
| cortisol | of the following which is not considered a timed blood specimen |
| about 7.4 | the normal pH of blood is |
| a spectrophotometer | an instrument which can be used to determine the concentration of a solution by measuring the light transmitted or absorbed by the solution is called |
| a specific density | a measurement of density is called |
| all of the choices | a labeled specimen must include |
| a patients chart | on a typical microcollection tray you would not find |
| incubator | a temperature controlled chamber into which inoculated media is placed so that bacterial growth will occur is called an |
| all of the choices | the complete blood count (CBC) includes which of the following tests |
| 15 degree | what is the best angle for a needle insertion during venipuncture |
| their various densities | why does blood separate into three layers when centrifgued |
| 6 | to help minimize dizziness or fainting,blood donors should eat within ___hours of donating blood |
| glucose and triglycerides | what tests may be affected most if the patient is not fasting |
| sheath | hemogaurd is a type of |
| 70% isopropyl | the most common antiseptic for routine blood draw is |
| 23 | the needle gauge with the smallest diameter is |
| gauge | needles are color coded according to |
| forceps | which of the following is not skin puncture equipment |
| PPD | the most common skin test performed is |
| low platelet count | a prolonged bleeding time is indicative of |
| serum enzyme test | a series of tests measuring enzymes released into the blood after a heart attack is |
| none of the choices | what is a reference point which test results are compared |
| none of the choices | when performing an arterial puncture you should |
| upward | the bevel of the needle should be in which position before entering a vein |
| alcohol | when drawing a specimen to test blood alcohol, the site cannot be prepared with |
| monitoring heparin therapy | what is the ACT used to determine |
| multiple draw needle | a retractable sheath is part of a |
| heparin lock | what is the special winged needle set that can be left in a patients vein for up to 48 hours and is used to administer medication and draw blood |
| flea | what is the name of the small metal bar that is inserted into the tube after collection of a capillary blood gas specimen used to aid in mixing the anticoagulant by means of magnet |
| septicemia | pathogenic bacteria or blood poisoning in the blood is called |
| the presence of circulation | what is the allen test used to determine |
| remove needle and apply pressure to the site | if a hematoma starts to form during the course of a phlebotomy which of the following should be done |
| heparin | in arterial blood gas procedure for adults, which of the following anticoagulant is added to coat the syringe barrel |
| 1 mL | for an ABG collection what is the required amount of sample |
| all of the choices | which of the following complications could be associated with the collection of arterial blood gas |
| .25mL | what should be the minimum volume of the capillary tube used to collect a specimen for capillary blood gas analysis |
| 30 degrees | when using a pusher slide which is the correct angle |
| glucose | which blood test usually does not require skin puncture |
| bleeding time | which of the following test uses a template instrument to obtain blood testing platelet integrity |
| crossmatch | what is the name of the compatibility test performed before a unit of blood is determined to be suitable for transfusion |
| tolerance | a test of the bodys ability to absorb and utilize a particular substance is which of the following |
| surgicutt | which method is the most common bleeding time test |
| spinal fluid culture | which of the following methods is used for detecting meningitis |
| aspiration | the action by which a fluid will enter a tube or pipet because of the attraction between the glass and liquid is |
| gauge | a measure of the diameter of a needle is |
| microhematocrit | a hematocrit performed on a small sample of blood is |
| all of the above | which of the following is used in bedisde glucose testing |
| candida albicans | what is a commonly identified pathogenic agent causing skin nosocomial infections |
| h2o | which of the following is not included in testing for blood gas assay |
| B-D vacutainer system | a blood collection vacuum tube is part of the |
| lateral anterior area of the elbow | which of the following sites is not recommended to collect capillary blood gases |
| polycythemia | therapeutic phlebotomy is used in the treatment of |
| cortisol | which of the following blood analysis has a rise and fall in values with the time of day, and thus must be collected on time |
| 5 mm | lancets with which of the following maximum lengths are suitable for older children |
| hemoconcentration | the value of a total protein test due to prolonged use of a tourniquet can produce changes in |
| near a tattoo | venipuncture at sites witch each of the following could affect test results except |
| at room temperature | phlebotomy needles should be stored |
| 21 | what gauge needles are commonly used for phlebotomy |
| use an IV line | which of the following procedures is nto done to obtain blood if a problem occurs during collection |
| TSH | cholesterol and ___ could be tested from the same tube |
| PT | serum glucose and ___ could not be tested from the same tube |
| direct coombs test | which of the following assays is performed in the immunohematology section |
| clinical chemistry | therapeutic drug monitoring usually is performed in which of the following sections |
| clinical microbiology | the ova and parasite procedure usually is performed in |
| 2.4 | a skin puncture on infants should not be more than how deep |
| 30 degrees | the best angle for spreading a blood smear using two glass slides is |
| 40 mm hg | for the surgicutt bleeding time test the blood pressure cuff must be inflated on the patients upper arm to |
| 25g | what is the usual dose of D-xylose administered to the patient in the D-xylose tolerance test |
| cerebrospinal fluid | which of the following is obtained through a lumbar puncture |
| yellow-red-light blue-red/gray-green/gray-green-lavendar-gray | the NCCLS order of draw using conventional stopper is |
| sterile-red-light nlue-gold-light green-green-lavendar-gray | the NCCLS order of draw using vacutainer tubes with hemoguard closure |
| sterile-light blue-lavenda-green-gray-red | the alternate syringe order of draw is |
| blood culture | yellow stoppered tubes are used for |
| green | sodium heparin is the anticoagulant found in which color tube |
| k2EDTA | which of the following anticoagulants are found in the pink plastic blood collection vacuum tube |
| sodium heparin | which of the following additives is found in a royal-blue stopped vacuum tube |
| thrombin | which of the following additives is found in a orange plastic vacuum tube |
| blood glucose | which of the following test require the use of a blood collection tube with a gray stopper |
| sodium citrate | what additive is in a tube with a light blue stopper |
| red/glass tube | blood grouping typing and AIDS antibody test must be performed with a collection tube of what color |
| red | a blood collection tube that requires no additive is what color |
| hematocrit | which of the following procedures usually requires a lavender stopper collection tube |
| hemolysis | when blood is collected from a patient with a syringe and needs to be transferred to an evacuated tube phlebotomist should never push the blood into the tube because it will cause |
| true | a smear is a specimen spread thinly and unevenly across a slide |
| true | a preparation of a specimen in a liquid hat allows the organism to remain alive and mobile while being identified is wet mount |
| true | a clay sealer tray is used to plug the open end of microhematocrit tubes |
| false | high density lipoprotein cholesterol is known as the ''bad'' cholesterol |
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