(NHA) Medical Assisting Certification Study Guide Questions & Answers
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Module
Medical Assisting
Institution
Medical Assisting
CC - ANSWERSChief Complaint
Segment - ANSWERSLine between two waveforms
P Wave - ANSWERSArterial Depolarization
How many 1mm boxes are in a 6 second rhythm strip? - ANSWERS30 one millimeter boxes
The SA node represents which waveform on the EKG? - ANSWERSOnly the P wave
What is the r...
(NHA) Medical Assisting Certification
Study Guide Questions & Answers
CC - ANSWERSChief Complaint
Segment - ANSWERSLine between two waveforms
P Wave - ANSWERSArterial Depolarization
How many 1mm boxes are in a 6 second rhythm strip? - ANSWERS30 one millimeter
boxes
The SA node represents which waveform on the EKG? - ANSWERSOnly the P wave
What is the reading you can get from the RR interval? - ANSWERSVentricular Pulse
What is the primary stage of Hemolysis? - ANSWERSVascular phase and platelet
phase together
What is Electrophoresis? - ANSWERSAnalyzation 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? - ANSWERSTurns
blue on a positive test for occult blood in feces
The stages of Hemostasis - ANSWERS1. Vascular, 2. Platelet Phase, 3. Coagulation
Phase,
4. Fibronolysis
Blood vessels - ANSWERSAorta, Arteries, Arterioles, Capillaries, Venues, Veins,
Superior and Inferior Vena Cavae
Outer connective tissue layer of a blood vessel - ANSWERSTunica Adventitia
Inner endothelial tissue of a blood vessel - ANSWERSTunica Intima
The inner smooth layer of a blood vessel - ANSWERSTunica tunica media
The standards of right and wrong in a medical setting - ANSWERSCode of Ethics
What do you find in capillaries? - ANSWERSA mixture of venous and arterial blood is
found
,The average adult has how many liters of blood? - ANSWERS5-6 Liters
What is the percentage of water in the blood? - ANSWERS92%
Percentage of plasma in the blood? - ANSWERS55%
Percentage of formed elements in the blood? - ANSWERS45%
99% of formed elements in the blood - ANSWERSRBC,s or Erythrocytes
Where do you find hemoglobin? - ANSWERSRBC,s
Where do all blood cells originate? - ANSWERSBone marrow
How many RBC,s per microliter of blood - ANSWERS4.2-6.2 million
What is the second most numerous WBC - ANSWERSLymphocyte with 20-40%
Their numbers increase in intracellular infections and TB - ANSWERSMonocytes
Their numbers increase in bacterial infections and are often first on the scene -
ANSWERSNeutrophils
These WBC,s play an important role in viral infection as well as in immunity -
ANSWERSLymphocytes
Number of leukocytes for average adult per microliter - ANSWERS5000-10000
Leukopenia - ANSWERSDecrease in WBC,s seen with viral infection and leukemia
Comprises 3-8% of WBC or leukocytes - ANSWERSMonocytes
Largest in size of the leukocytes - ANSWERSMonocytes
Carries histamine - ANSWERSBasophil
Injury to a blood vessel that causes it to constrict, slowing the clod of blood. -
ANSWERSVascular phase of Hemostasis
Preferred site for a venipuncture - ANSWERSAntecubital Fossa
Test used to evaluate the intrinsic pathway and monitor heparin therapy -
ANSWERSAPTT also know as PTT
Test used to evaluate the extrinsic pathway and also used to monitor warfarin therapy -
ANSWERSPT
, Fibrinolysis - ANSWERSBreakdown and removal of a clot
Converts the temporary platelet plug in a stable fibrin clot - ANSWERSCoagulation
Phase
2nd choice vein for venipuncture and most often the only one palatable in an obese Pt. -
ANSWERSCephalic vein
Antiseptics used in Phlebotomy - ANSWERS70% 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 - ANSWERS1 inch (up to 1.5")
Average gauge of needle used for drawing blood - ANSWERS21-22
Gauge of needle that can cause hemolysis - ANSWERSsmaller than 23 gauge
3 skills of the phlebotomist - ANSWERSSocial, clerical, technical
Analytical errors during collection of blood - ANSWERSExtended tourniquet time,
hemolysis, wrong order of draw, failure to invert tubes, faulty technique under filling
tubes
Analytical errors before collection of blood - ANSWERSPatient 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 - ANSWERSFailure 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
Fistula - ANSWERSPermanent surgical connection between an artery and a vein, never
used for venipuncture
Edima - ANSWERSAccumulation of fluid in tissue
Thrombophlebitis - ANSWERSInflammation of a blood clot formation
Explanation of Hemoconcentration - ANSWERSThe increase in proportion of formed
elements to plasma caused by leaving on the tourniquet for more than two minutes
Consequence of insufficient pressure applied after withdrawal of a needle -
ANSWERSThrombus
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