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51 Cards in this Set
- Front
- Back
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All of the following items are used when performing a routine venipuncture EXCEPT:
a. Disinfectant b. Evacuated tubes c. Safety needles d. Tourniquet |
A
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In a successful venipuncture, evacuated tubes fill automatically as soon as the tube is pierced because of:
a. Equal pressure in the vein and tube b. Premeasured vacuum in each tube c. Pressure from the arterial system d. Tourniquet pressure on the vein |
B
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Lavender stopper or closure tubes are most commonly used to collect:
a. Chemistry tests b. Coagulation tests c. Hematology tests d. Immunology tests |
C
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All of the following are true of glove powder EXCEPT that it can:
a. Cause an allergic reaction b. Contaminate specimens c. Make gloves last longer d. Suspend latex bits in air |
C
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Decontamination of hands after glove removal is essential for all of the following reasons EXCEPT:
a. contamination is needed to quickly restore normal flora b. Glove powder must be removed as a contamination source c. Gloves may contain defects and not be an adequate barrier d. Hand contamination may not be visible to the naked eye |
A
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This gauge of needle is used primarily as a transfer needle rather than for blood collection.
a. 16 b. 18 c. 21 d. 23 |
B
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Properly applied tourniquets should do all of the following EXCEPT:
a. Distend or inflate the veins of choice b. Make veins larger and easier to find c. Restrict venous and arterial blood flow d. Stretch vein walls so they are thinner |
C
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To what does the “gauge” of a needle relate?
a. Diameter b. Length c. Strength d. Volume |
A
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Which needle gauge has the largest bore or lumen?
a. 18 b. 20 c. 21 d. 23 |
A
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The slanted tip of a needle is called the:
a. Bevel b. Hub c. Lumen d. Shaft |
A
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The purpose of the rubber sleeve that covers the tube end of a multiple-sample needle is to:
a. Enable smooth tube placement and removal b. Maintain the sterile condition of the sample c. Prevent leakage of blood during tube changes d. Protest the needle and help keep it sharp |
C
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What criterion is used to decide which needle gauge to use for venipuncture:
a. Depth of the selected vein b. Size and condition of the vein c. Type of test being collected d. Your personal preference |
B
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Why are gauze pads a better choice than cotton balls for covering the site and holding pressure following venipuncture?
a. Cotton balls are not very absorbent b. Cotton ball fibers can stick to the site c. Gauze pads are a more sterile choice d. Gauze pads deliver more pressure |
B
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During venipuncture the tourniquet should not be left on longer than:
a. 30 seconds b. 1 minute c. 2 minutes d. 5 minutes |
B
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Which one of the following substances is an anticoagulant?
a. Oxalate b. Phosphate c. Silica d. Thrombin |
A
ECHO (EDTA)(Citrate)(Heparin)(Oxalate) |
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Heparin prevents blood from clotting by:
a. Activating calcium b. Binding calcium c. Chelating thrombin d. Inhibiting thrombin |
D
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Which of the following stopper colors identifies a tube used for coagulation testing?
a. Green b. Lavender c. Light blue d. Red |
C
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All of the following are considerations for what size tubes to use for ETS blood collection EXCEPT the:
a. Age and weight of the patient b. Patient’s allergy to antiseptics c. Sample size needed for testing d. Size and condition of the veins |
B
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What is the purpose of an antiglycolytic agent?
a. Enhance the clotting process b. Inhibit electrolyte breakdown c. Preserve glucose d. Prevent clotting |
C
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This test is collected in a light blue top tube:
a. Glucose b. Platelet count c. Prothrombin time d. Red blood count |
C
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The intent of the alternate syringe order of draw is to:
a. Decrease the clotting time in serum separator tubes b. Minimize microclot formation in anticoagulant tubes c. Prevent additive carryover when filling other tubes d. Reduce the likelihood of microbial contamination. |
B
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A pink top tube containing EDTA is primarily used for:
a. Blood bank tests b. Chemistry tests c. Coagulation tests d. Mic robiology tests |
A
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A prothrombin time (PT) and platelet count are ordered on an 80-year-old female patient. Deciding to use a butterfly and “short draw” evacuated tubes on the tiny cephalic vein on the dorsal side of the right arm, the phlebotomist collects the light blue tube first and the lavender last. Why would you suspect that the PT test results might be incorrect and the platelet count unaffected:
a. No tube was drawn to remove air in the butterfly tubing b. PTs should never be collected using “short draw” tubes c. The tubes were drawn in the wrong collection sequence d. Venipuncture of the tiny vein led to specimen hemolysis |
A
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Most reference rages are normal laboratory test values for:
a. Fasting patients b. Healthy people c. Ill individuals d. Treated patients |
B
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Lipemia results from:
a. High fat content of the blood b. Improper specimen handling c. Increased number of platelets d. Specimen hemoconcentration |
A
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A hematoma is a:
a. Blood clot inside of a vein b. Pool of fluid from an IV ine c. Swelling or mass of blood d. Symptom of nerve injury |
C
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A vein with walls that have temporarily drawn together and shut off blood flow during venipuncture is called a:
a. Blown vessel b. Collapsed vein c. Reflux reaction d. Passive fistula |
B
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Which of the following is the medical term for fainting?
a. Sclerose b. Stasis c. Supine d. Syncope |
D
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The serum or plasma of a lipemic specimen appears:
a. Cloudy white b. Dark yellow c. Foamy pink d. Pink to red |
A
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A lipemic specimen is a clue that the patient was:
a. Dehydrated b. In a basal state c. Jaundiced d. Not fasting |
D
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A 12-hour fast is normally required when testing for this analyte.
a. Bilirubin b. Calcium c. Electrolytes d. Triglycerides |
D
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You must collect a protime specimen from a patient with IVs in both arms. The BEST place to collect the specimen is:
a. Above one of the IVs. b. Below one of the IVs. c. From an ankle vein d. From one of the IVs. |
B
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All of the following are ways to bandage a venipuncture site when the patient is allergic to the glue in adhesive bandages EXCEPT:
a. Apply a bandage that is latex-free b. Hold pressure in lieu of a bandage c. Place paper tape over a gauze pad d. Wrap it with self-adhering material |
A
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Which patient should be asked to lie down during a blood draw? A patient with a:
a. Central venous catheter b. Coagulation disorder c. History of syncope d. Sever latex allergy |
C
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During a blood draw a patient says he feels faint. What should the phlebotomist do?
a. Ask the patient if it is all right to continue the draw b. Discontinue the draw and lower the patient’s head c. Hold him up with one hand and complete the draw d. Wave ammonia inhalant past his nose to revive him |
B
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If an outpatient tells you before a blood draw that she is feeling nauseated, you should do all of the following EXCEPT:
a. Draw the specimen, but watch her closely b. Give her an emesis basin in case she vomits c. Hold a cold, damp washcloth to her forehead d. Tell her to begin breathing slowly and deeply |
A
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Which of the following is the BEST indication that you have accidentally punctured an artery?
a. A hematoma starts to form b. Blood obtained is dark red c. Blood pulses into the tube d. There is no way to tell |
C
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A patient complains of marked pain when you insert the needle. The pain radiates down his arm and does not subside. What should you do?
a. Ask him if he wants you to stop the draw. b. Discontinue the venipuncture immediately c. Collect the specimen as quickly as you can d. Say “Hold on or I’ll have to stick you again”. |
B
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A stinging sensation when the needle is first inserted is MOST likely the result of:
a. An imperfection on the bevel of the needle b. Having the tourniquet tied excessively tight c. Not allowing the alcohol to dry thoroughly d. Pushing down on the needle as it is inserted |
C
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The serum or plasma of a hemolyzed specimen appears:
a. Clear yellow b. Cloudy white c. Greenish yellow d. Pink or reddish |
D
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Which action is LEAST likely to cause hemolysis of a specimen?
a. Drawing a large tube using a small needle b. Mixing a blood specimen too vigorously c. Pulling back a syringe plunger too quickly d. Transferring blood from a syringe to a tube |
D
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A phlebotomist has tried twice to collect a light blue top tube on a patient with difficult veins. Both times the phlebotomist has been able to collect only a partial tube. What should the phlebotomist do?
a. Collect the specimen by skin puncture b. Have someone else collect the specimen c. Pour the two tubes together and mix well d. Send one to the lab marked “difficult draw”. |
B
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You are collecting a blood specimen. The needle is in the vein and blood flow has been established. As the tube is filling, you hear a hissing sound, there is a spurt of blood into the tube, and blood flow stops. What has MOST likely happened is the:
a. Bevel came out of the skin and the tube vacuum escaped b. Needle went all the way through the back wall of the vein c. Patient had a sudden and dramatic drop in blood pressure d. Tube had a crack in it and there was no more vacuum left. |
A
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You insert the needle into the vein during blood collection. When you advance the tube onto the needle in the holder, you do not get blood flow. You can see that the needle is beside the vein. You redirect the needle two times and still do not get blood flow. What should you do next?
a. Anchor the vein and redirect the needle again b. Ask a coworker to redirect the needle for you c. Discontinue the draw and try again at a new site d. Try pushing the needle deeper and then redirect |
C
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A vein may collapse for all of the following reasons EXCEPT:
a. Several large-volume tubes have been collected b. The tourniquet has been applied excessively tight c. The tourniquet is too close to the venipuncture site d. Tube vacuum is too much for the size of the vein. |
A
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Properly applied tourniquets should do all of the following EXCEPT:
a. Distend or inflate the veins of choice b. Make veins larger and easier to find c. Restrict venous and arterial blood flow d. Stretch vein walls so they are thinner |
C
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Which one of the following tubes contains an additive?
a. Red glass b. Red/light gray plastic c. Red plastic d. Royal blue glass/red label |
C
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A solution used to clean the site before routine venipuncture is:
a. 5.25% sodium hypochlorite b. 70% isopropyl alcohol c. 70% methanol d. Povidone-iodine |
B
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This antiseptic has been traditionally used to obtain the high degree of skin antisepsis required when collecting blood cultures.
a. 70% ethyl alcohol b. 70% isopropanol c. Hydrogen peroxide d. Povidone-iodine |
D
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Plastic red top tubes used to collect blood specimens contain:
a. Anticoagulants b. Clot activators c. No additives d. Preservatives |
B
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ORDER OF DRAW
color top? additive? inversions? |
1.
-yellow-sterile/blood cultures -SPS -8/10X 2. -light blue -citrate -3/4X 3. -Gold -SST/gel separator -5X 3. -red -serum tube (glass/plastic) -glass(none)plastic(5X) 4. -green -heparin -8/10X 4. light green PST 8/10X 4. green/gray -gel separator/heprin -8/10X 5. -lavender -EDTA -8/10X 6 gray floride(glucose) 8/10X |
