RPT Exam Study Guide

RPT Exam Study Guide Areas from which blood should not be collected include all the following with the exception of - A basilic vein An anticoagulant is used when collecting a sample from a blood glucose test because its ability to inhibit glycolysis. What colored stopper would be found on an evacuated blood collection tube used for this purpose? - Light gray top The anticoagulant heparin is used in tubes with tops of what color? - Green Which of the following would be the very first step in performing a routine venipuncture on a patient? - Identify yourself What color evacuated tube would be commonly used for coagulation testing? - Light blue Why is it necessary to wipe the first drop of blood away when performing a capillary procedure? - To reduce interstitial fluid contamination If the plunger on the syringe is pulled back too fast: - The specimen may be hemolyzed Specimens are scheduled for collection at specific times for different reasons. Which of the following is most likely not a factor? - Patients must be tested 2 hours before meals Which of the following is an accurate statement regarding the handling of specimens? - Blood smears made from EDTA specimens must be prepared within 1 hour of collection. Which of the following would be first in the sequence of performing a finger stick procedure? - Sanitize hands and put on gloves. The main reason not to use expired evacuated tubes for blood specimen collection is - they may exhibit incomplete filling. A serum or plasma specimen containing abnormally increased fatty substances from animal or vegetable origin is described as - lipemic. What abnormal color will be observed in serum collected from a patient with jaundice due to elevated bilirubin levels? Select one: - Yellow Which of the following anticoagulants is found in a green-topped blood collection vacuum tube? - Sodium heparin A falsely decreased blood alcohol level may be obtained if - the tube is only partially filled. Which of the following situations would most likely trigger hematoma formation? - removing the needle while the tourniquet is still on the arm. A skin puncture is preferred over a venipuncture when the patient - has severe burns. A serum or plasma specimen from a patient with severe lipemia would visibly appear - milky. A basal-state specimen, used to establish reference ranges for inpatients, is best collected - early in the morning, after fasting for 12 hours. How long should a tourniquet be placed around a patient's arm? - No more than one minute How far above the venipuncture site should the tourniquet be wrapped around the arm? - 3 to 4 inches The most critical part of a blood culture collection is - skin antisepsis of the collection site Which of the following conditions would be most likely cause hemoconcentration? - Dehydration Petechiae are tiny, nonraised red spots on a patient's skin when the tourniquet is applied. This indicates, that - site may bleed excessively. The phlebotomist has prepared the patient's arm and found the basilic vein. Has the phlebotomist selected the preferred vein site for venipuncture? - No, the medial cubital vein is preferred The primary reason for using a syringe transfer device is to - safely transfer blood from a syringe into ETS tubes.