PHLEBOTOMY FINAL EXAM ANSWER KEY, Exams of Health sciences

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PHLEBOTOMY FINAL EXAM ANSWER

KEY

1)What color tube is used to perform a complete blood count? a. Gray top b. Lavender top c. Green top d. Marble top 2)Red-top tubes are also called “plain” tubes. Blood collected in these tubes are allowed to clot by normal coagulation process, which will take how long? a. 5 minutes b. 30 - 60 seconds c. 1 - 1.5 hours d. 3 hours 3)A patient came to the clinic for a low-grade fever or one month duration. As part of the laboratory work-up, the physician ordered an erythrocyte sedimentation rate (ESR). a. Red-top tube b. Lavender-top tube c. Light-blue top tube d. Green-top tube 4)Which of the following tubes is used for PT and PTT? a. Red-top tube b. Green-top tube c. Light- blue tube d. Yellow-top tube 5)The sample of blood from a capillary puncture after an excessive squeezing of the finger will be: a. Hemolyzed b. Contaminated with tissue fluid c. Infected d. Normal/Unchanged 6)Which of the following is incorrect about the lavender-top tube? a. It contains an anticoagulant which binds to calcium b. It is used to collect a specimen for complete blood count c. It must be inverted several times immediately after drawing to ensure uniform mixing of blood and anticoagulant d. It is used to collect a specimen for coagulation studies 7)As you are inserting a needle into a patient’s arm to draw a blood sample when he suddenly jerks. The needle comes out of the vein and pierces your index finger. Which of the following is the appropriate reaction? a. Scold the patient for jumping

supervisor d. Wash your wound with bleach, but don't report it 8)The additive in a green-top collection tube is: a. Lithium heparin/ Sodium Heparin b. Potassium Oxalate c. Sodium Citrate d. EDTA 9)Which of the following barrier protections MUST a phlebotomist use when performing skin puncture or venipuncture? a. Laboratory coat b. Gloves c. Face shield d. Mask 10)The additive on a pink collection tube is: a. Sodium polyantholesulfonate (SPS) b. Sodium Heparin c. Ethylenediaminetetraacetic acid (EDTA) d. Acid citrate dextrose (ACD) 11)When the body has had adequate rest and no food for at least 12 hours, it is said to be in: a. Steady state b. Homeostas is c. Basal state d. Hemostasis 12)Which of the following tubes will give serum from the specimen collected? a. Red/Grey top tubes b. Lavender top tubes c. Gray top tubes d. Yellow top tubes 13)Which section of the Clinical Laboratory will perform pregnancy tests on blood specimens? a. Chemistry b. Hematology c. Microbiology/ Serology d. Blood Bank 14)A patient experiencing hypoglycemia is having which of the following? a. High blood glucose level b. High cholesterol level c. Low blood glucose level d. Low cholesterol level 15)Which of the following can occur when the tourniquet is left on too long? a. Hypertrophy b. Hemolysis

c. Hemoconcentration d. Collapsed vein 16)Which of the following are also referred to as serum separator tubes (SST)? a. Red-top tubes b. Lavender-top tubes c. Light-blue top tubes d. Red/Grey top tubes 17)A group of tests required as one unit is called a: a. Grou p b. Profile c. Stat d. Menu 18)A hematoma can be prevented if: a. The pressure is placed on the venipuncture site until the bleeding stops b. The needle is removed before the tourniquet is released c. A gauze and adhesive strip is immediately placed on venipuncture site after the needle is removed d. A butterfly needle is used 19)When the tourniquet is tied too tight, the capillaries in the area may rupture causing: a. A rash b. Pain c. Urticaria d. Petechiae 20)What step should a phlebotomist take if blood was drawn from the wrong patient? a. Re-label the tubes with the correct patient’s name b. Immediately report the incident to the supervisor c. Re-draw the specimen immediately d. Throw the tubes away and make sure no one finds out 21)A phlebotomist was asked to collect a specimen from a patient in the Oncology department. A patient in this department is most likely being treated for: a. Diabete s b. Cancer c. Vascular Disorders d. Pregnancy 22)A request for complete blood count (CBC) was received at the laboratory. The phlebotomist went to the patient’s room and within ten minutes was back with a properly labeled lavender-top tube about 80% filled with blood. Later, the phlebotomist was asked to redraw the specimen. Which of the following could be the cause for the specimen rejection?

d. Amount collected was insufficient 23)The function of thrombocytes is: a. To transport to the tissues b. Phagocytes (engulfs bacteria) c. Clotting or repairing of blood vessel d. Produce antibodies 24)The lifespan of an Erythrocyte is: a. 1 week b. 14 days c. 80 days d. 120 days 25)Vascular phase of hemostasis is characterized by which of the following reactions? a. Platelets aggregate at the injured site forming a temporary platelet plug b. The temporary platelet plug is converted to a stable fibrin clot c. Blood vessels constrict in response to injury d. Breakdown and removal of the clot 26)The most common cause of blood culture contamination is: a. Collection of too much blood b. Sample came from below the IV line c. The use of needle and syringe for the collection d. Improper skin preparation 27)If a patient refuses venipuncture procedure, the phlebotomist should: a. Inform the patient that they will still be responsible to pay for the procedure b. Have the patient restrained c. Inform the patient that they must leave the facility d. Immediately report the refusal and actions taken to the nurse 28)The function of neutrophils is: a. To remove oxygen from the tissues b. Phagocytes (engulfs bacteria) c. Clotting or repairing of blood vessel d. Produce antibodies 29)What is the purpose of the accession number? a. It provides the phlebotomist priorities for making rounds in specimen collection b. It provides insurance information for billing purposes c. It provides a unique tracking number for the specimen with its test order d. It provides the phlebotomist with the correct order of draw 30)Hard and cord-like veins are considered to be: a. Hemolyzed b. Thrombosed c. Sclerosed d. Collapsed

31)The formed cellular elements of blood in a healthy individual constitute: a. 35% of blood b. 45% of blood

b. Mode of Transmission

c. Portal of Exit d. Susceptible Host 40)The infection transmitted by an exchange of body fluids with blood is considered? a. Airborne b. Blood Borne c. Vector Borne d. Indirect Infection 41)The innermost layer of a blood vessel is called: a. Connective tissue b. Muscular c. Endothelial d. Epithelial 42)The main BBP OSHA regulation requires which of the following step to prevent needlestick injuries occurring with phlebotomy procedures: a. Use of approved needle safety devices manufactured to cover the exposed needle immediately after the procedure b. Recap the needle after procedure c. Place needle in a designated plastic cup located on the phlebotomy tray d. Place contaminated needle in small biohazard bag 43)The phlebotomist was sent to a patient’s room to draw blood for coagulation studies. Which of the following is correct about this draw? a. The phlebotomist can use capillary tubes for the blood collection b. Draw a red top tube before the light blue tube c. Fill a light blue tube to the top d. Before drawing the specimen, make sure the patient has fasted for 12 hours 44)A patient has been taking aspirin for arthritis. Which of the following is most likely to be affected by it? a. Blood culture collection b. Blood culture results c. Bleeding time d. Glucose time 45)The liquid upper portion of a blood sample in a vacutainer tube after 5 minutes of centrifugation is called: a. Water b. Serum/ Plasma c. Buffy coat d. Blood elements 46)Microorganisms that cause disease are: a. Normal flora b. Nonpathogen ic c. Pathogenic

a. Have a medical insurance b. Have a life insurance c. Vaccinate for HBV or sign a waiver d. PPD evaluation 48)In this type of blood vessel, you would find oxygenated and deoxygenated blood: a. Pulmonary artery b. Capillaries c. Pulmonary vein d. Aorta 49)Patient confidentiality is defined as: a. The patient’s right to authorize use of his/her information b. The patient’s right for better treatment c. The patient’s right to receive information d. The patient’s right to view his/her chart 50)Hemolyzed blood appears when: a. The blood takes on a white appearance in the collection tube b. Plasma layer appears pink or red within the collection tube c. There is a presence of dark, almost black blood in the collection tube d. Blood fails to separate into three layers within the collection tube 51)OSHA regulation requires that all healthcare personnel exposed to blood and other body fluids must receive a vaccination against: a. Hepatitis A virus b. Hepatitis B virus c. Hepatitis C virus d. Hepatitis Delta virus 52)Which of the following is a right under the Patient’s Bill of Rights? a. Decline medical treatments b. Know the medical status of family members in the hospital c. Refusal to pay for medical treatment d. Escort your specimens to and from the laboratory

a. Median Cubital Vein b. Cephalic Vein c. Radial Artery d. Basilic Vein 54)A fomite is defined as: a. Animal transmitting defector disease b. Inanimate things transmitting disease c. Infected d. Carriers 55)Which of the following barrier protections must a phlebotomist use when performing skin puncture or venipuncture? a. Laboratory coat b. Gloves c. Face shield d. Mask 56)Which of the following veins in the arm is most commonly used in venipuncture? a. Brachial Vein b. Basilic Vein c. Median Cubital Vein d. Cephalic Vein 57)Which tube(s) will yield a serum specimen? a. Blue top b. Green top c. Lavender top d. Red top 58)What is the correct order of the chain of infection? a. Means of transmission, susceptible host, source

a. Green-top tube

b. Light-blue tube c. Red-top tube d. Gray-top tube 67)The most frequently occurring laboratory nosocomial infection is: a. HIV b. HAV c. HC V d. HBV 68)The antiglycolytic agent that maintains glucose stability for three (3) days is: a. Ethylenediaminetetraacetic acid (EDTA) b. Sodium polyanetholesulfonate (SPS) c. Sodium Citrate d. Sodium fluoride 69)The additive in the red/grey or red/blck speckled collection tube is: a. Sodium heparin b. No additive c. Ethylenediaminetetraacetic acid (EDTA) d. Thixotropic gel for serum separation 70)The proper order of draw for PT/PTT, CBC Ammonia level and Cardiac enzymes using the multi-draw method is: a. Lavender, red, light-blue, yellow, green b. Yellow, red, light-blue, green, lavender c. Light-blue, red, green, lavender d. Yellow, light-blue, red, green, lavender 71)Which of the following is not part of a complete blood count? a. Hematocrit b. Activated partial thromboplastin time c. Hemoglobin d. Differential 72)A test involving multiple collections of blood and urine over specified time intervals is called: a. HCG b. GTT c. PTT d. HCT 73)The additive in a grey collection tube is: a. Lithium heparin b. Sodium heparin c. Potassium oxalate d. No additive 74)Which tube is never centrifuged? a. Red top

d. Lavender 75)The additive in a light-blue collection tube is: a. Sodium heparin b. Sodium citrate c. Sodium fluoride d. Sodium polyanetholesulfonate 76)What is the purpose of the tourniquet in a venipuncture procedure? a. To block arterial blood flow b. To enlarge veins so they are easier to find and enter c. To anchor the veins and prevent from “rolling” d. To create a barrier between oxygenated blood and sample collected 77)Postprandial means: a. Fasting b. Before a meal c. After a meal d. Before bedtime 78)A female patient complains to you that “it's against my religion to be touched by a male technician”. The appropriate response from the male technician is to: a. Refuse to perform any procedures without an apology b. Get a female technician to perform the tests c. Put on an extra pair of gloves and drape the patient to insure no contact d. Explain these are medical procedures not religious issues 79)The correct lead from the center of the heart to the positive pole of the right arm is: a. II b. III c. AVR d. AVF 80)The normal running speed of the EKG paper is: a. 50 mm/sec b. 25 mm/sec c. 50 m/sec d. 25 m/sec 81)An obese patient was sent to the laboratory for a complete blood count. Which of the following veins is most likely to be the only one that the phlebotomist can palpate? a. Median cubital vein b. Cephalic vein c. Basilic vein d. Antecubital vein 82)Which of the following vessels has valves?

a. Artery b. Capillar y c. Vein