NHA MEDICAL ASSISTANT EXAM NEWEST 2024-
2025 EXAM COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS)
Yellow top tube
Ans: additive:Sodium polyanethol sulfonate (SPS)
use: SPS for blood culture specimen collections in microbiology; sterile blood cultures,
bacterial studies
QUESTION>>>> Gold/Tiger Top Tube
Ans: additive: serum separator tube (SST), clot activator, thixotropic gel (creates
barriers)
use: chemistry; routine blood donor screening, diagnostic testing of serum for infectious
diseases
QUESTION>>>> Light blue top tube
Ans: additive: Sodium Citrate / Anticoagulant
use: coagulation studies; prevent clotting
QUESTION>>>> Green top tube
Ans: additive: sodium heparin; lithium heparin
use: plasma determinations in chemistry; prevent clotting
QUESTION>>>> Red top tube
, 2
Ans: additive: plastic--> clot activator for sodium; glass--> no additive (plain)
use: chemistry; routine blood donor screening; diagnostic testing for infectious diseases;
serum specimens
QUESTION>>>> Lavender top tube
Ans: additive: anticoagulant EDTA (ethylenediaminetetraacetic acid)
use: whole blood hematology testing; routine immunohematology testing; blood donor
screening; CBC
QUESTION>>>> Gray top tube
Ans: additive: potassium oxalate; sodium fluoride
use: glucose testing (GTT); inhibits glycolysis; alcohol levels
QUESTION>>>> Intradermal (ID) injection
Ans: gauge: 27 to 28
length: 3/8 in
angle: 10-15 degrees
location: mid forearm (TB; wheel)
QUESTION>>>> Subcutaneous (SubQ, SC) injection
Master01 | Dec, 2024/2025 | Latest update
, 3
Ans: gauge: 25 to 26
length: 1/2, 5/8 in
angle: 45 degrees
location: upper outer arm, abdomen, and thigh (heparin and insulin, no massage)
QUESTION>>>> intramuscular (IM) injection
Ans: gauge: 20 to 23
length: 1 to 3 in
angle: 90 degrees
location: deltoid (1 ml, not for <3, massged), ventrogluteal (large quantities, deeper,
viscous), vastus lateralis ( for <3)
clean from center outward with alcohol pad/swab
QUESTION>>>> Hemoglobin (Hgb)
Ans: Females: 12-16 g/dL
Males: 15-17 g/dL
QUESTION>>>> Hematocrit (Hct)
Ans: Females: 36%- 45%
Males: 42%- 52%
QUESTION>>>> fasting blood glucose (FBG)
Master01 | Dec, 2024/2025 | Latest update
, 4
Ans: 60-110 mg/dL
QUESTION>>>> total cholesterol
Ans: less than 200 mg/dL
QUESTION>>>> Triglycerides
Ans: less than 150 mg/dL
QUESTION>>>> Urine
Ans: pH: 4-6.8
specific gravity: 1.005-1.030
urobilinogen: 0.1 to 1
other: negative
QUESTION>>>> sodium
Ans: 135 to 145 mEq/L
QUESTION>>>> Red blood cell count
Ans: Males: 4.7-6.1 /mm^3
Females: 4.2- 5.4 /mm^3
QUESTION>>>> Platelet
Ans: 130 to 400 /mm^3
QUESTION>>>> Potassium
Master01 | Dec, 2024/2025 | Latest update
2025 EXAM COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS)
Yellow top tube
Ans: additive:Sodium polyanethol sulfonate (SPS)
use: SPS for blood culture specimen collections in microbiology; sterile blood cultures,
bacterial studies
QUESTION>>>> Gold/Tiger Top Tube
Ans: additive: serum separator tube (SST), clot activator, thixotropic gel (creates
barriers)
use: chemistry; routine blood donor screening, diagnostic testing of serum for infectious
diseases
QUESTION>>>> Light blue top tube
Ans: additive: Sodium Citrate / Anticoagulant
use: coagulation studies; prevent clotting
QUESTION>>>> Green top tube
Ans: additive: sodium heparin; lithium heparin
use: plasma determinations in chemistry; prevent clotting
QUESTION>>>> Red top tube
, 2
Ans: additive: plastic--> clot activator for sodium; glass--> no additive (plain)
use: chemistry; routine blood donor screening; diagnostic testing for infectious diseases;
serum specimens
QUESTION>>>> Lavender top tube
Ans: additive: anticoagulant EDTA (ethylenediaminetetraacetic acid)
use: whole blood hematology testing; routine immunohematology testing; blood donor
screening; CBC
QUESTION>>>> Gray top tube
Ans: additive: potassium oxalate; sodium fluoride
use: glucose testing (GTT); inhibits glycolysis; alcohol levels
QUESTION>>>> Intradermal (ID) injection
Ans: gauge: 27 to 28
length: 3/8 in
angle: 10-15 degrees
location: mid forearm (TB; wheel)
QUESTION>>>> Subcutaneous (SubQ, SC) injection
Master01 | Dec, 2024/2025 | Latest update
, 3
Ans: gauge: 25 to 26
length: 1/2, 5/8 in
angle: 45 degrees
location: upper outer arm, abdomen, and thigh (heparin and insulin, no massage)
QUESTION>>>> intramuscular (IM) injection
Ans: gauge: 20 to 23
length: 1 to 3 in
angle: 90 degrees
location: deltoid (1 ml, not for <3, massged), ventrogluteal (large quantities, deeper,
viscous), vastus lateralis ( for <3)
clean from center outward with alcohol pad/swab
QUESTION>>>> Hemoglobin (Hgb)
Ans: Females: 12-16 g/dL
Males: 15-17 g/dL
QUESTION>>>> Hematocrit (Hct)
Ans: Females: 36%- 45%
Males: 42%- 52%
QUESTION>>>> fasting blood glucose (FBG)
Master01 | Dec, 2024/2025 | Latest update
, 4
Ans: 60-110 mg/dL
QUESTION>>>> total cholesterol
Ans: less than 200 mg/dL
QUESTION>>>> Triglycerides
Ans: less than 150 mg/dL
QUESTION>>>> Urine
Ans: pH: 4-6.8
specific gravity: 1.005-1.030
urobilinogen: 0.1 to 1
other: negative
QUESTION>>>> sodium
Ans: 135 to 145 mEq/L
QUESTION>>>> Red blood cell count
Ans: Males: 4.7-6.1 /mm^3
Females: 4.2- 5.4 /mm^3
QUESTION>>>> Platelet
Ans: 130 to 400 /mm^3
QUESTION>>>> Potassium
Master01 | Dec, 2024/2025 | Latest update
