(NHA) Medical Assisting Certification
(NHA) Medical Assisting Certification Study
Guide Questions and Answers 2025
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
(NHA) Medical Assisting Certification
,(NHA) Medical Assisting Certification
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%
(NHA) Medical Assisting Certification
,(NHA) Medical Assisting Certification
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
(NHA) Medical Assisting Certification
, (NHA) Medical Assisting Certification
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")
(NHA) Medical Assisting Certification
(NHA) Medical Assisting Certification Study
Guide Questions and Answers 2025
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
(NHA) Medical Assisting Certification
,(NHA) Medical Assisting Certification
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%
(NHA) Medical Assisting Certification
,(NHA) Medical Assisting Certification
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
(NHA) Medical Assisting Certification
, (NHA) Medical Assisting Certification
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")
(NHA) Medical Assisting Certification
