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(NHA) Medical Assisting Certification Study Guide Questions And Answers( With Complete Solution)
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(NHA) Medical Assisting CertificationStudy Guide
CC –
Chief Complaint
Segment –
Line between two waveforms
P Wave –
Arterial Depolarization
How many 1mm boxes are in a 6 second rhythm strip? –
30 one millimeter boxes
The SA node represents which waveform on the EKG? –
Only the P wave
What is the reading you can get from the RR interval? –
Ventricular Pulse
What is the primary stage of Hemolysis? –
Vascular phase and platelet phase together
What is Electrophoresis? –
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? –
Turns blue on a positive test for occult blood in feces
The stages of Hemostasis –
1. Vascular, 2. Platelet Phase, 3. Coagulation Phase,
4. Fibronolysis
Blood vessels –
Aorta, Arteries, Arterioles, Capillaries, Venues, Veins, Superior and Inferior Vena
Cavae
Outer connective tissue layer of a blood vessel –
Tunica Adventitia
Inner endothelial tissue of a blood vessel –
,Tunica Intima
The inner smooth layer of a blood vessel –
Tunica tunica media
The standards of right and wrong in a medical setting –
Code of Ethics
What do you find in capillaries? –
A mixture of venous and arterial blood is found
The average adult has how many liters of blood? –
5-6 Liters
What is the percentage of water in the blood? –
92%
Percentage of plasma in the blood? –
55%
Percentage of formed elements in the blood? –
45%
99% of formed elements in the blood –
RBC,s or Erythrocytes
Where do you find hemoglobin? –
RBC,s
Where do all blood cells originate? –
Bone marrow
How many RBC,s per microliter of blood –
4.2-6.2 million
What is the second most numerous WBC –
Lymphocyte with 20-40%
Their numbers increase in intracellular infections and TB –
Monocytes
Their numbers increase in bacterial infections and are often first on the scene –
Neutrophils
These WBC,s play an important role in viral infection as well as in immunity –
Lymphocytes
, Number of leukocytes for average adult per microliter –
5000-10000
Leukopenia –
Decrease in WBC,s seen with viral infection and leukemia
Comprises 3-8% of WBC or leukocytes –
Monocytes
Largest in size of the leukocytes –
Monocytes
Carries histamine –
Basophil
Injury to a blood vessel that causes it to constrict, slowing the clod of blood. –
Vascular phase of Hemostasis
Preferred site for a venipuncture –
Antecubital Fossa
Test used to evaluate the intrinsic pathway and monitor heparin therapy –
APTT also know as PTT
Test used to evaluate the extrinsic pathway and also used to monitor warfarin therapy -
PT
Fibrinolysis –
Breakdown and removal of a clot
Converts the temporary platelet plug in a stable fibrin clot –
Coagulation Phase
2nd choice vein for venipuncture and most often the only one palatable in an obese Pt.
–
Cephalic vein
Antiseptics used in Phlebotomy –
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 –
1 inch (up to 1.5")
Average gauge of needle used for drawing blood –
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