NHA MEDICAL ASSISTING
CERTIFICATION STUDY GUIDE
CORRECT 100%
CC - ANSWERChief Complaint
Segment - ANSWERLine between two waveforms
P Wave - ANSWERArterial Depolarization
How many 1mm boxes are in a 6 second rhythm strip? - ANSWER30 one millimeter
boxes
The SA node represents which waveform on the EKG? - ANSWEROnly the P wave
What is the reading you can get from the RR interval? - ANSWERVentricular Pulse
What is the primary stage of Hemolysis? - ANSWERVascular phase and platelet phase
together
What is Electrophoresis? - ANSWERAnalyzation 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? - ANSWERTurns
blue on a positive test for occult blood in feces
The stages of Hemostasis - ANSWER1. Vascular, 2. Platelet Phase, 3. Coagulation
Phase,
4. Fibronolysis
Blood vessels - ANSWERAorta, Arteries, Arterioles, Capillaries, Venues, Veins,
Superior and Inferior Vena Cavae
Outer connective tissue layer of a blood vessel - ANSWERTunica Adventitia
Inner endothelial tissue of a blood vessel - ANSWERTunica Intima
The inner smooth layer of a blood vessel - ANSWERTunica tunica media
The standards of right and wrong in a medical setting - ANSWERCode of Ethics
What do you find in capillaries? - ANSWERA mixture of venous and arterial blood is
found
,The average adult has how many liters of blood? - ANSWER5-6 Liters
What is the percentage of water in the blood? - ANSWER92%
Percentage of plasma in the blood? - ANSWER55%
Percentage of formed elements in the blood? - ANSWER45%
99% of formed elements in the blood - ANSWERRBC,s or Erythrocytes
Where do you find hemoglobin? - ANSWERRBC,s
Where do all blood cells originate? - ANSWERBone marrow
Test used to evaluate the extrinsic pathway and also used to monitor warfarin therapy -
ANSWERPT
Fibrinolysis - ANSWERBreakdown and removal of a clot
Converts the temporary platelet plug in a stable fibrin clot - ANSWERCoagulation Phase
2nd choice vein for venipuncture and most often the only one palatable in an obese Pt. -
ANSWERCephalic vein
Antiseptics used in Phlebotomy - ANSWER70% 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 - ANSWER1 inch (up to 1.5")
Average gauge of needle used for drawing blood - ANSWER21-22
Gauge of needle that can cause hemolysis - ANSWERsmaller than 23 gauge
3 skills of the phlebotomist - ANSWERSocial, clerical, technical
Analytical errors during collection of blood - ANSWERExtended tourniquet time,
hemolysis, wrong order of draw, failure to invert tubes, faulty technique under filling
tubes
Analytical errors before collection of blood - ANSWERPatient 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 - ANSWERFailure 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 - ANSWERPermanent surgical connection between an artery and a vein, never
used for venipuncture
Edima - ANSWERAccumulation of fluid in tissue
Thrombophlebitis - ANSWERInflammation of a blood clot formation
Explanation of Hemoconcentration - ANSWERThe 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 -
ANSWERThrombus
Additives in a green top tube - ANSWERHeparin, sodium, lithium, ammonium
Why is the green top tube never used for hematology? - ANSWERGreen tops additive
heparin interferes with the Wright's stained blood test
Common tests for the lavender EDTA tube - ANSWERCBC, differential or diff, ESR,
sickle cell screening
Common tests for this color tube are Chemistry tests performed on plasma such as
ammonia, carboxyhemoglobin and STAT electrolytes - ANSWERGreen top tube
(Heparin) tests
How long does it take for blood to clot by the normal coagulation process in the red top
tube - ANSWER30-60 mins
The primary purpose is to provide reliable data about a patients health status by
ensuring the accuracy of a test while detecting and eliminating error - ANSWERWhat is
Quality Control?
Common test for the red topped tube - ANSWERSerum Chemistry tests, serology tests,
blood bank (Glass only)
Order of the draw for capillary specimens - ANSWERLavender first, than tubes with
other additives, than tubes without additives
Antiseptic not used on a dermal puncture site - ANSWERBetadine (Because it interferes
with several tests like bilirubin, uric acid, phosphorus, and postassim)
CERTIFICATION STUDY GUIDE
CORRECT 100%
CC - ANSWERChief Complaint
Segment - ANSWERLine between two waveforms
P Wave - ANSWERArterial Depolarization
How many 1mm boxes are in a 6 second rhythm strip? - ANSWER30 one millimeter
boxes
The SA node represents which waveform on the EKG? - ANSWEROnly the P wave
What is the reading you can get from the RR interval? - ANSWERVentricular Pulse
What is the primary stage of Hemolysis? - ANSWERVascular phase and platelet phase
together
What is Electrophoresis? - ANSWERAnalyzation 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? - ANSWERTurns
blue on a positive test for occult blood in feces
The stages of Hemostasis - ANSWER1. Vascular, 2. Platelet Phase, 3. Coagulation
Phase,
4. Fibronolysis
Blood vessels - ANSWERAorta, Arteries, Arterioles, Capillaries, Venues, Veins,
Superior and Inferior Vena Cavae
Outer connective tissue layer of a blood vessel - ANSWERTunica Adventitia
Inner endothelial tissue of a blood vessel - ANSWERTunica Intima
The inner smooth layer of a blood vessel - ANSWERTunica tunica media
The standards of right and wrong in a medical setting - ANSWERCode of Ethics
What do you find in capillaries? - ANSWERA mixture of venous and arterial blood is
found
,The average adult has how many liters of blood? - ANSWER5-6 Liters
What is the percentage of water in the blood? - ANSWER92%
Percentage of plasma in the blood? - ANSWER55%
Percentage of formed elements in the blood? - ANSWER45%
99% of formed elements in the blood - ANSWERRBC,s or Erythrocytes
Where do you find hemoglobin? - ANSWERRBC,s
Where do all blood cells originate? - ANSWERBone marrow
Test used to evaluate the extrinsic pathway and also used to monitor warfarin therapy -
ANSWERPT
Fibrinolysis - ANSWERBreakdown and removal of a clot
Converts the temporary platelet plug in a stable fibrin clot - ANSWERCoagulation Phase
2nd choice vein for venipuncture and most often the only one palatable in an obese Pt. -
ANSWERCephalic vein
Antiseptics used in Phlebotomy - ANSWER70% 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 - ANSWER1 inch (up to 1.5")
Average gauge of needle used for drawing blood - ANSWER21-22
Gauge of needle that can cause hemolysis - ANSWERsmaller than 23 gauge
3 skills of the phlebotomist - ANSWERSocial, clerical, technical
Analytical errors during collection of blood - ANSWERExtended tourniquet time,
hemolysis, wrong order of draw, failure to invert tubes, faulty technique under filling
tubes
Analytical errors before collection of blood - ANSWERPatient 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 - ANSWERFailure 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 - ANSWERPermanent surgical connection between an artery and a vein, never
used for venipuncture
Edima - ANSWERAccumulation of fluid in tissue
Thrombophlebitis - ANSWERInflammation of a blood clot formation
Explanation of Hemoconcentration - ANSWERThe 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 -
ANSWERThrombus
Additives in a green top tube - ANSWERHeparin, sodium, lithium, ammonium
Why is the green top tube never used for hematology? - ANSWERGreen tops additive
heparin interferes with the Wright's stained blood test
Common tests for the lavender EDTA tube - ANSWERCBC, differential or diff, ESR,
sickle cell screening
Common tests for this color tube are Chemistry tests performed on plasma such as
ammonia, carboxyhemoglobin and STAT electrolytes - ANSWERGreen top tube
(Heparin) tests
How long does it take for blood to clot by the normal coagulation process in the red top
tube - ANSWER30-60 mins
The primary purpose is to provide reliable data about a patients health status by
ensuring the accuracy of a test while detecting and eliminating error - ANSWERWhat is
Quality Control?
Common test for the red topped tube - ANSWERSerum Chemistry tests, serology tests,
blood bank (Glass only)
Order of the draw for capillary specimens - ANSWERLavender first, than tubes with
other additives, than tubes without additives
Antiseptic not used on a dermal puncture site - ANSWERBetadine (Because it interferes
with several tests like bilirubin, uric acid, phosphorus, and postassim)
