CRT(RRT) Exam Review Questions
and Correct Answers
less than 10 minutes - correct answer ✔✔bleeding time (template)
4.2 - 5.9 million/mcl - correct answer ✔✔erythrocyte count
Male: 0-15mm/hr
Female: 0-20 mm/hr - correct answer ✔✔erythrocyte sedimentation rate (Westergren)
Male: 42-50%
Female: 40 - 48% - correct answer ✔✔hematocrit, blood
Male: 13-16 g/dl
Female: 12-15 g/dl - correct answer ✔✔hemoglobin, blood
leukocyte count: 4000-11000/mcl
50-70% segmented neutrophils
0-5% band forms, 0-3% eosinophils
0-1% basophils, 30-45% lymphocytes
0-6% monocytes - correct answer ✔✔leukocyte count and differential
86-98 fL - correct answer ✔✔mean corpuscular volume
11-13 seconds - correct answer ✔✔protrhombin time, plasma
,30-40 seconds - correct answer ✔✔partial thromboplastin time (activated)
150,000 - 300,000/mcL - correct answer ✔✔platelet count
0.5 - 1.5% of red cells - correct answer ✔✔reticulocyte count
25 - 125 U/L - correct answer ✔✔amylase, serum
75-100 mmHg - correct answer ✔✔arterial studies, blood (Patient breathing room air): PO2
38-42mmHg - correct answer ✔✔arterial studies, blood (Patient breathing room air): PCO2
23-26 mEq/L - correct answer ✔✔arterial studies, blood (Patient breathing room air):
Bicarbonate
7.38 - 7.44 - correct answer ✔✔arterial studies, blood (Patient breathing room air): pH
95% or greater - correct answer ✔✔arterial studies, blood (Patient breathing room air): Oxygen
Saturation
23 - 28 mEq/L - correct answer ✔✔bicarbonate, serum
Total 0.3 - 1.0 mg/dL
Direct 0.1 - 0.3 mg/dL - correct answer ✔✔bilirubin, serum:
0.3 - 1.0 mg/dL - correct answer ✔✔Comprehensive metabolic panel:
,Bilirubin, serum (total)
Male: 9.0 -10.5mg/dL
Female: 8.5 - 10.2mg/dL - correct answer ✔✔Comprehensive metabolic panel:
calcium, serum
Desirable: less than 200md/dL
Borderline-high: 200-239mg/dL(may be high in the presence of coronary artery disease or other
risk factors)
High: greater than 239md/dL - correct answer ✔✔Comprehensive metabolic panel:
cholesterol, serum (total)
0.7-1.5 mg/dL - correct answer ✔✔Comprehensive metabolic panel:
creatinine, serum
Normal (fasting); 70 -115 mg/dL
Borderline: 115-140 mg/dL
Abnormal: greater than 140 mg/dL - correct answer ✔✔Glucose, plasma
3.0 - 4.5 mg/dL - correct answer ✔✔phosphorus, serum
0.2 - 0.4 g/dL - correct answer ✔✔Proteins, serum:
Pre-Albumin
3.5 - 5.5 g/dL - correct answer ✔✔Proteins, serum:
Albumin
, 8 - 20 mg/dL - correct answer ✔✔Urea nitrogen, blood (BUN)
3.0 -7.0 mg/dL - correct answer ✔✔Uric acid, serum
Low: less than 40 mg/dL - correct answer ✔✔Cholesterol serum:
High density lipoprotein (HDL)
Optimal: less than 100mg/dL
Near optimal: 100 - 129 mg/dL
Borderline-high: 130-159 mg/dL (may be high in the presence of coronary artery disease or
other risk factors)
High: 160 - 189 mg/dL
Very high: 190 mg/dL and bove - correct answer ✔✔Cholesterol serum:
Low density lipoprotein (LDL)
Normal: less than 250mg/dL
Borderline: 250 - 500 mg/dL
Abnormal: greater than 500 mg/dL - correct answer ✔✔Triglycerides, serum (fasting)
136 - 145 mEq/L - correct answer ✔✔Electrolytes, serum:
sodium
3.5-5.0 mEq/L - correct answer ✔✔Electrolytes, serum:
potassium
and Correct Answers
less than 10 minutes - correct answer ✔✔bleeding time (template)
4.2 - 5.9 million/mcl - correct answer ✔✔erythrocyte count
Male: 0-15mm/hr
Female: 0-20 mm/hr - correct answer ✔✔erythrocyte sedimentation rate (Westergren)
Male: 42-50%
Female: 40 - 48% - correct answer ✔✔hematocrit, blood
Male: 13-16 g/dl
Female: 12-15 g/dl - correct answer ✔✔hemoglobin, blood
leukocyte count: 4000-11000/mcl
50-70% segmented neutrophils
0-5% band forms, 0-3% eosinophils
0-1% basophils, 30-45% lymphocytes
0-6% monocytes - correct answer ✔✔leukocyte count and differential
86-98 fL - correct answer ✔✔mean corpuscular volume
11-13 seconds - correct answer ✔✔protrhombin time, plasma
,30-40 seconds - correct answer ✔✔partial thromboplastin time (activated)
150,000 - 300,000/mcL - correct answer ✔✔platelet count
0.5 - 1.5% of red cells - correct answer ✔✔reticulocyte count
25 - 125 U/L - correct answer ✔✔amylase, serum
75-100 mmHg - correct answer ✔✔arterial studies, blood (Patient breathing room air): PO2
38-42mmHg - correct answer ✔✔arterial studies, blood (Patient breathing room air): PCO2
23-26 mEq/L - correct answer ✔✔arterial studies, blood (Patient breathing room air):
Bicarbonate
7.38 - 7.44 - correct answer ✔✔arterial studies, blood (Patient breathing room air): pH
95% or greater - correct answer ✔✔arterial studies, blood (Patient breathing room air): Oxygen
Saturation
23 - 28 mEq/L - correct answer ✔✔bicarbonate, serum
Total 0.3 - 1.0 mg/dL
Direct 0.1 - 0.3 mg/dL - correct answer ✔✔bilirubin, serum:
0.3 - 1.0 mg/dL - correct answer ✔✔Comprehensive metabolic panel:
,Bilirubin, serum (total)
Male: 9.0 -10.5mg/dL
Female: 8.5 - 10.2mg/dL - correct answer ✔✔Comprehensive metabolic panel:
calcium, serum
Desirable: less than 200md/dL
Borderline-high: 200-239mg/dL(may be high in the presence of coronary artery disease or other
risk factors)
High: greater than 239md/dL - correct answer ✔✔Comprehensive metabolic panel:
cholesterol, serum (total)
0.7-1.5 mg/dL - correct answer ✔✔Comprehensive metabolic panel:
creatinine, serum
Normal (fasting); 70 -115 mg/dL
Borderline: 115-140 mg/dL
Abnormal: greater than 140 mg/dL - correct answer ✔✔Glucose, plasma
3.0 - 4.5 mg/dL - correct answer ✔✔phosphorus, serum
0.2 - 0.4 g/dL - correct answer ✔✔Proteins, serum:
Pre-Albumin
3.5 - 5.5 g/dL - correct answer ✔✔Proteins, serum:
Albumin
, 8 - 20 mg/dL - correct answer ✔✔Urea nitrogen, blood (BUN)
3.0 -7.0 mg/dL - correct answer ✔✔Uric acid, serum
Low: less than 40 mg/dL - correct answer ✔✔Cholesterol serum:
High density lipoprotein (HDL)
Optimal: less than 100mg/dL
Near optimal: 100 - 129 mg/dL
Borderline-high: 130-159 mg/dL (may be high in the presence of coronary artery disease or
other risk factors)
High: 160 - 189 mg/dL
Very high: 190 mg/dL and bove - correct answer ✔✔Cholesterol serum:
Low density lipoprotein (LDL)
Normal: less than 250mg/dL
Borderline: 250 - 500 mg/dL
Abnormal: greater than 500 mg/dL - correct answer ✔✔Triglycerides, serum (fasting)
136 - 145 mEq/L - correct answer ✔✔Electrolytes, serum:
sodium
3.5-5.0 mEq/L - correct answer ✔✔Electrolytes, serum:
potassium
