1 Exampromax - Stuvia US 2025/2026
MEDICAL ASSISTANT EXAM/ACTUAL
EXAM QUESTIONS WITH WELL
DETAILED ANSWERS/GRADE A+
ASSURED A+
What are the 3 veins that are located in the antecubital fossa?
Ans: -Median cubital vein
-Cephalic vein
-Basilic vein
Tiger Top & Red Top Tube
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-Additives?
Exampromax - Stuvia US
-Common Tests?
-How many times do you invert?
-What part of the lab does this tube go to?
Ans: Tiger:
Serum Separator tube (SST)
Additive: Glass particles, silica, & thixotropic gel.
Tests: chemistry, lipids, cardiac enzymes (CKMB & Troponin)
Invert: 8 times
Red:
Additive: None
Tests: chemistry
Invert: 0
Chemistry part of the lab
Gray Top Tubes
-Additives?
-Common Tests?
-How many times do you invert?
-What part of the lab does this tube go to?
, 2 Exampromax - Stuvia US 2025/2026
Ans: Additives: Sodium fluoride & Potassium Oxalate
Common tests: Fasting blood sugar, Glucose tolerance test (GTT), blood alcohol
levels, and lactic acid measurements
Invert: 8 times
Chemistry part of the lab
Green Top Tubes
-Additives?
-Common tests?
-How many times do you invert?
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-What part of the lab does this tube go to?
Ans: Additives: Heparin, Sodium, lithium or ammonium-ion
Exampromax - Stuvia US
Tests: Ammonia, Carboxyhemoglobin, and STAT electrolytes
Invert: 8 times
Chemistry part of the lab
Lavender Top Tube
-Additives?
-Common tests?
-How many times do you invert?
-What part of the lab does this tube go to?
Ans: **MUST fill tube 2/3**
Additives: EDTA (Ethylenediaminetetraacetic acid)
Tests: CBC (RBC, WBC, and Platelet), WBC differential, Hemoglobin &
Hematocrit determinations, Erythrocyte sedimentation Rate (ESR)/ SED rate,
sickle cell screening, and lead levels.
Invert: 8 times
Hematology part of the lab
Light Blue Top Tube
, 3 Exampromax - Stuvia US 2025/2026
-Additives?
-Common Tests?
-How many times do you need to invert?
-What part of the lab does this tube go to?
Ans: **Needs to be filled completely**
**9 parts blood to 1 part sodium**
Additives: Sodium Citrate
Common tests: Prothrombin Time (PT), Coumadin Therapy, Activated Partial
Thromboplastin Time (PTT), Monitors heparin therapy and bleeding time.
Invert: 3-4 times
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Hematology part of the lab
Exampromax - Stuvia US
What is the order of draw?
Ans: 1- Sterile
2- Light Blue
3- Red / Tiger Top
4- Green
5- Lavender
6- Gray
What is a hematoma?
Ans: The most common complication in plebotomy. This indicated that blood
has accumulated in the tissue surrounding the vein.
Causes: The needle going through the vein, and failure to apply enough pressure
on the site after needle withdrawal.
What are some factors to consider prior to performing venipuncture?
Ans: -Fasting
-Edema
-Fistula
What are petechiae?
, 4 Exampromax - Stuvia US 2025/2026
Ans: Tiny non-raised spots that appear on the skin from rupturing of the
capillaries due to the tourniquet being left on too long or too tight.
(Tiny little bruises)
What is the order of draw for capillary specimens?
Ans: 1. Lavender Tube
2. Tubes with additives
3. Tubes without additives
What is plebitis?
Ans: Inflammation of a vein as a result of repeated venipuncture on that vein.
© 2025 Assignment Expert
How many blood draws in a 3-hour glucose tolerance test? (GTT)
Ans: 5 sticks
Exampromax - Stuvia US
What are the precordial leads on an EKG?
Ans: V1, V2, V3, V4, V5, V6
Where is precordial lead V1 located?
Ans: In the fourth intercostal space, right sternal border
(Above the right breast)
Where is precordial lead V2 located?
Ans: In the fourth intercostal space, left sternal border
(Above the left breast)
Where is precordial lead V4 located?
Ans: In the fifth intercostal space, left mid-clavicular line
(Right below the nipple)
Where is precordial lead V5 located?
Ans: In the fifth intercostal space, anterior axillary line
MEDICAL ASSISTANT EXAM/ACTUAL
EXAM QUESTIONS WITH WELL
DETAILED ANSWERS/GRADE A+
ASSURED A+
What are the 3 veins that are located in the antecubital fossa?
Ans: -Median cubital vein
-Cephalic vein
-Basilic vein
Tiger Top & Red Top Tube
© 2025 Assignment Expert
-Additives?
Exampromax - Stuvia US
-Common Tests?
-How many times do you invert?
-What part of the lab does this tube go to?
Ans: Tiger:
Serum Separator tube (SST)
Additive: Glass particles, silica, & thixotropic gel.
Tests: chemistry, lipids, cardiac enzymes (CKMB & Troponin)
Invert: 8 times
Red:
Additive: None
Tests: chemistry
Invert: 0
Chemistry part of the lab
Gray Top Tubes
-Additives?
-Common Tests?
-How many times do you invert?
-What part of the lab does this tube go to?
, 2 Exampromax - Stuvia US 2025/2026
Ans: Additives: Sodium fluoride & Potassium Oxalate
Common tests: Fasting blood sugar, Glucose tolerance test (GTT), blood alcohol
levels, and lactic acid measurements
Invert: 8 times
Chemistry part of the lab
Green Top Tubes
-Additives?
-Common tests?
-How many times do you invert?
© 2025 Assignment Expert
-What part of the lab does this tube go to?
Ans: Additives: Heparin, Sodium, lithium or ammonium-ion
Exampromax - Stuvia US
Tests: Ammonia, Carboxyhemoglobin, and STAT electrolytes
Invert: 8 times
Chemistry part of the lab
Lavender Top Tube
-Additives?
-Common tests?
-How many times do you invert?
-What part of the lab does this tube go to?
Ans: **MUST fill tube 2/3**
Additives: EDTA (Ethylenediaminetetraacetic acid)
Tests: CBC (RBC, WBC, and Platelet), WBC differential, Hemoglobin &
Hematocrit determinations, Erythrocyte sedimentation Rate (ESR)/ SED rate,
sickle cell screening, and lead levels.
Invert: 8 times
Hematology part of the lab
Light Blue Top Tube
, 3 Exampromax - Stuvia US 2025/2026
-Additives?
-Common Tests?
-How many times do you need to invert?
-What part of the lab does this tube go to?
Ans: **Needs to be filled completely**
**9 parts blood to 1 part sodium**
Additives: Sodium Citrate
Common tests: Prothrombin Time (PT), Coumadin Therapy, Activated Partial
Thromboplastin Time (PTT), Monitors heparin therapy and bleeding time.
Invert: 3-4 times
© 2025 Assignment Expert
Hematology part of the lab
Exampromax - Stuvia US
What is the order of draw?
Ans: 1- Sterile
2- Light Blue
3- Red / Tiger Top
4- Green
5- Lavender
6- Gray
What is a hematoma?
Ans: The most common complication in plebotomy. This indicated that blood
has accumulated in the tissue surrounding the vein.
Causes: The needle going through the vein, and failure to apply enough pressure
on the site after needle withdrawal.
What are some factors to consider prior to performing venipuncture?
Ans: -Fasting
-Edema
-Fistula
What are petechiae?
, 4 Exampromax - Stuvia US 2025/2026
Ans: Tiny non-raised spots that appear on the skin from rupturing of the
capillaries due to the tourniquet being left on too long or too tight.
(Tiny little bruises)
What is the order of draw for capillary specimens?
Ans: 1. Lavender Tube
2. Tubes with additives
3. Tubes without additives
What is plebitis?
Ans: Inflammation of a vein as a result of repeated venipuncture on that vein.
© 2025 Assignment Expert
How many blood draws in a 3-hour glucose tolerance test? (GTT)
Ans: 5 sticks
Exampromax - Stuvia US
What are the precordial leads on an EKG?
Ans: V1, V2, V3, V4, V5, V6
Where is precordial lead V1 located?
Ans: In the fourth intercostal space, right sternal border
(Above the right breast)
Where is precordial lead V2 located?
Ans: In the fourth intercostal space, left sternal border
(Above the left breast)
Where is precordial lead V4 located?
Ans: In the fifth intercostal space, left mid-clavicular line
(Right below the nipple)
Where is precordial lead V5 located?
Ans: In the fifth intercostal space, anterior axillary line
