NHA Medical Assisting Certification Study Guide Test.

NHA Medical Assisting Certification Study Guide Test. CC - CORRECT ANSWER Chief Complaint Segment - CORRECT ANSWER Line between two waveforms P Wave - CORRECT ANSWER Arterial Depolarization How many 1mm boxes are in a 6 second rhythm strip? - CORRECT ANSWER 30 one millimeter boxes The SA node represents which waveform on the EKG? - CORRECT ANSWER Only the P wave What is the reading you can get from the RR interval? - CORRECT ANSWER Ventricular Pulse What is the primary stage of Hemolysis? - CORRECT ANSWER Vascular phase and platelet phase together What is Electrophoresis? - CORRECT ANSWER Analyzation of the chemical components of blood, e.g. hemoglobin, serum, urine, cerebrospinal fluid based on electrical charge. Positive testing for occult blood in a stool sample turns which color? - CORRECT ANSWER Turns blue on a positive test for occult blood in feces The stages of Hemostasis - CORRECT ANSWER 1. Vascular, 2. Platelet Phase, 3. Coagulation Phase, 4. Fibronolysis Blood vessels - CORRECT ANSWER Aorta, Arteries, Arterioles, Capillaries, Venues, Veins, Superior and Inferior Vena Cavae Outer connective tissue layer of a blood vessel - CORRECT ANSWER Tunica Adventitia Inner endothelial tissue of a blood vessel - CORRECT ANSWER Tunica Intima The inner smooth layer of a blood vessel - CORRECT ANSWER Tunica tunica media The standards of right and wrong in a medical setting - CORRECT ANSWER Code of Ethics What do you find in capillaries? - CORRECT ANSWER A mixture of venous and arterial blood is found The average adult has how many liters of blood? - CORRECT ANSWER 5-6 Liters What is the percentage of water in the blood? - CORRECT ANSWER 92% Percentage of plasma in the blood? - CORRECT ANSWER 55% Percentage of formed elements in the blood? - CORRECT ANSWER 45% 99% of formed elements in the blood - CORRECT ANSWER RBC,s or Erythrocytes Where do you find hemoglobin? - CORRECT ANSWER RBC,s Where do all blood cells originate? - CORRECT ANSWER Bone marrow How many RBC,s per microliter of blood - CORRECT ANSWER 4.2-6.2 million What is the second most numerous WBC - CORRECT ANSWER Lymphocyte with 20-40% Their numbers increase in intracellular infections and TB - CORRECT ANSWER Monocytes Their numbers increase in bacterial infections and are often first on the scene - CORRECT ANSWER Neutrophils These WBC,s play an important role in viral infection as well as in immunity - CORRECT ANSWER Lymphocytes Number of leukocytes for average adult per microliter - CORRECT ANSWER Leukopenia - CORRECT ANSWER Decrease in WBC,s seen with viral infection and leukemia Comprises 3-8% of WBC or leukocytes - CORRECT ANSWER Monocytes Largest in size of the leukocytes - CORRECT ANSWER Monocytes Carries histamine - CORRECT ANSWER Basophil Injury to a blood vessel that causes it to constrict, slowing the clod of blood. - CORRECT ANSWER Vascular phase of Hemostasis Preferred site for a venipuncture - CORRECT ANSWER Antecubital Fossa Test used to evaluate the intrinsic pathway and monitor heparin therapy - CORRECT ANSWER APTT also know as PTT Test used to evaluate the extrinsic pathway and also used to monitor warfarin therapy - CORRECT ANSWER PT Fibrinolysis - CORRECT ANSWER Breakdown and removal of a clot Converts the temporary platelet plug in a stable fibrin clot - CORRECT ANSWER Coagulation Phase 2nd choice vein for venipuncture and most often the only one palatable in an obese Pt. - CORRECT ANSWER Cephalic vein Antiseptics used in Phlebotomy - CORRECT ANSWER 70% isopropyl alcohol pads most common, provolone - iodine for BC,s and Chlorhexidine gluconate for patients that are allergic to Betadine/ Iodine Length of needle commonly used in venipuncture - CORRECT ANSWER 1 inch (up to 1.5") Average gauge of needle used for drawing blood - CORRECT ANSWER 21-22 Gauge of needle that can cause hemolysis - CORRECT ANSWER smaller than 23 gauge 3 skills of the phlebotomist - CORRECT ANSWER Social, clerical, technical Analytical errors during collection of blood - CORRECT ANSWER Extended tourniquet time, hemolysis, wrong order of draw, failure to invert tubes, faulty technique under filling tubes Analytical errors before collection of blood - CORRECT ANSWER Patient misidentification, improper time, wrong tubes, not fasting, exercise (Cortisol levels), Pt. Posture, Poor coordination with other treatments, improper site prep, medication interference Analytical errors After collection of blood - CORRECT ANSWER Failure to separate serum from cell (Glycolisis), improper use of serum separator (Not inverting tubes or not spinning tubes), delays in processing, exposure to light, improper storage conditions, dimming clots