(NHA) Medical Assisting Certification
Study Guide
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-5000-10000
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
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