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Phlebotomy AMT Practice Exam 1 part 1
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When is a phlebotomist allowed to perform a venipuncture on an ankle vein? - correct answer ✔✔When all other options have been exhausted and the physician has given approval The phlebotomist has prepared the patient's arm and found the basilic vein. Has the phlebotomist selected the preferred vein site for venipuncture? - correct answer ✔✔No, the medial cubital vein is preferred How long should a tourniquet be placed around a patient's arm? - correct answer ✔✔No more than one minute What information would NOT be indicated on the label of a blood bank specimen? - correct answer ✔✔NPO status of the patient and time of last meal If blood begins to flow and then stops when an evacuated tube is pushed into the needle the most likely cause is the - correct answer ✔✔bevel of the needle resting against the vein wall. To prevent glycolysis, which additive is used? - correct answer ✔✔Sodium Fluoride Petechiae are tiny, nonraised red spots on a patient's skin when the tourniquet is applied. This indicates, that - correct answer ✔✔site may bleed excessively. Following venipuncture, which of the following should be applied to the venipuncture site? - correct answer ✔✔clean, sterile gauze pad Which of the following anticoagulants is found in a green-topped blood collection vacuum tube? - correct answer ✔✔Sodium heparin
When a patient states that he or she has a needle phobia, the phlebotomist should - correct answer ✔✔have the patient lie down during the procedure. Alcohol should be allowed to dry completely prior to skin puncture to - correct answer ✔✔prevent lysis of red blood cells To avoid contamination when should the needle cap be removed? - correct answer ✔✔Just prior to performing the puncture Prior to bandaging the puncture site the phlebotomist should - correct answer ✔✔examine the site for bleeding. The phlebotomist would collect a blood sample in a tube containing the anticoagulant sodium citrate (which inhibits glycolysis) for which type of laboratory test? - correct answer ✔✔Erythrocyte Sedimentation Rate (ESR) The primary reason for using a syringe transfer device is to - correct answer ✔✔safely transfer blood from a syringe into ETS tubes. A postprandial specimen is collected - correct answer ✔✔directly after a meal is consumed During venipuncture, a hematoma may result from which of the following? - correct answer ✔✔Needle bevel is partially inserted into a vein A skin puncture is preferred over a venipuncture when the patient - correct answer ✔✔has severe burns. Which of the following situations would most likely trigger hematoma formation? - correct answer ✔✔Removing the needle while the tourniquet is still on the arm. Proper identification of a coherent adult inpatient includes - correct answer ✔✔ask the patient their name & check the identification band that is physically attached to the patient. (both a & b)
Which of the following is not mandated to be on a label of a blood specimen collected for blood transfusion testing? - correct answer ✔✔Patient's phone number The color-coded tube that is most frequently associated with coagulation tests is - correct answer ✔✔light blue Which of the following is an accurate statement regarding the handling of specimens? - correct answer ✔✔Blood smears made from EDTA specimens must be prepared within 1 hour of collection. Which of the following is the most critically affected analyte in a hemolyzed specimen? - correct answer ✔✔Potassium Which of the following is of primary importance in preventing rolling veins during venipuncture? - correct answer ✔✔Anchoring the vein while inserting the needle Swelling caused from blood leaking from a blood vessel is - correct answer ✔✔hematoma. The phlebotomist places the blood specimen in circles on special filter paper, for what test? - correct answer ✔✔pku: Positive phenylketonuria test: Which of the following actions could cause the formation of a hematoma? - correct answer ✔✔The needle penetrates all the way through the vein When a patient develops syncope during a venipuncture, the phlebotomist should first: - correct answer ✔✔Remove tourniquet and needle and call for help What instrument may be used when trying to visualize the veins during venipuncture? - correct answer ✔✔Venoscope If a vein feels hard and thready like when palpated, then this vein may be - correct answer ✔✔sclerosed.
When blood collected in a syringe must be placed in evacuated tubes it is best if - correct answer ✔✔a blood transfer device is attached to the syringe. If a patient is critical or an antibiotic needs to be given right away, and two blood culture sets are collected - correct answer ✔✔immediately from two different sites. The main reason not to use expired evacuated tubes for blood specimen collection is - correct answer ✔✔they may exhibit incomplete filling. Heparinized plasma is preferred over serum for some chemistry tests. Heparin prevents clotting by - correct answer ✔✔inactivating thrombin Why is it necessary to wipe the first drop of blood away when performing a capillary procedure? - correct answer ✔✔To reduce interstitial fluid contamination What is the correct procedure to stop the bleeding at a venipuncture site? - correct answer ✔✔Place a gauze pad over the site and hold pressure for 5 to 15 minutes A collapsed vein will cause a - correct answer ✔✔cessation of blood flow. Hemoconcentration of a specimen can be avoided by - correct answer ✔✔removing the tourniquet within 1 minute. The heel is the recommended site for collection of capillary puncture specimens on infants and the phlebotomist is going to stick in the posterior curvature of the heel. Is this correct? - correct answer ✔✔No the medial plantar surface of the heel is the best site to prevent possible bone damage Which of the following conditions would be most likely cause hemoconcentration? - correct answer ✔✔Dehydration Preanalytical errors are mistakes made - correct answer ✔✔before laboratory testing.
What is the preferred method for infant blood collection? - correct answer ✔✔Capillary The most common antiseptic for routine blood collection is - correct answer ✔✔70% isopropyl alcohol Which of the following would be first in the sequence of performing a finger stick procedure? - correct answer ✔✔Sanitize hands and put on gloves. A serum or plasma specimen containing abnormally increased fatty substances from animal or vegetable origin is described as - correct answer ✔✔lipemic. Partial penetration of the upper wall of a vein may - correct answer ✔✔allow blood to leak into subcutaneous tissue by way of the needle bevel If the plunger on the syringe is pulled back too fast: - correct answer ✔✔The specimen may be hemolyzed When performing a heel puncture on an infant, proper technique includes - correct answer ✔✔placing the lancet flat against the skin on the medial or lateral plantar surface of the heel. How far above the venipuncture site should the tourniquet be wrapped around the arm? - correct answer ✔✔3 to 4 inches You have properly prepared the antecubital venipuncture site, you have the correct collection device, and enter the vein at a 20-degree angle. Is this the proper angle of insertion? - correct answer ✔✔No, 30 degrees is the correct angle for the needle to be inserted into the skin When blood is inoculated into blood culture bottles using a butterfly apparatus the - correct answer ✔✔aerobic bottle in inoculated first. Specimens are scheduled for collection at specific times for different reasons. Which of the following is most likely not a factor? - correct answer ✔✔Patients must be tested 2 hours before meals
The liquid portion of an anticoagulated blood specimen is called - correct answer ✔✔plasma You have to draw a 7 year old child for some blood work, what would be the best approach you should use when it is a child getting blood drawn? - correct answer ✔✔Explain what you are going to do in simple terms and ask the child for his or her cooperation. When performing a capillary blood collection, the first blood drop is wiped away because - correct answer ✔✔the first drop typically has more tissue fluid. Areas from which blood should not be collected include all the following with the exception of - correct answer ✔✔a Basilic vein. A falsely decreased blood alcohol level may be obtained if - correct answer ✔✔the tube is only partially filled. What antiseptic should the phlebotomy technician use to collect a blood culture? - correct answer ✔✔Chlorhexidine gluconate After the last tube is filled, which of the following is done next? - correct answer ✔✔Filled tube is removed from the holder The phlebotomist has a patient who has no known allergies and in preparing the venipuncture site the phlebotomist uses iodine to clean the site. Is this the best antiseptic to use and the most commonly used anticeptic used to prepare a routine venipuncture site on a patient with no known allergies? - correct answer ✔✔No, the phlebotomist should use 70% isopropyl alcohol. What is POCT? - correct answer ✔✔Point-of-care testing A specimen that requires chilling for transport to the lab should be placed in - correct answer ✔✔a container immersed in a slurry of crushed ice and water.
A synovial fluid specimen is obtained from - correct answer ✔✔a joint When instructing patients in the collection of a 24-hour urine specimen, which patient should be asked about possible leakage when laughing or coughing? - correct answer ✔✔A 60-year-old female patient A quality fasting urine specimen is collected - correct answer ✔✔8 hours after eating.
