Ace the CRT/RRT Exam: Your Guide to
Success
bleeding time (template) -
\less than 10 minutes
erythrocyte count -
\4.2 - 5.9 million/mcl
erythrocyte sedimentation rate (Westergren) -
\Male: 0-15mm/hr
Female: 0-20 mm/hr
hematocrit, blood -
\Male: 42-50%
Female: 40 - 48%
hemoglobin, blood -
\Male: 13-16 g/dl
Female: 12-15 g/dl
leukocyte count and differential -
\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
mean corpuscular volume -
\86-98 fL
protrhombin time, plasma -
\11-13 seconds
partial thromboplastin time (activated) -
\30-40 seconds
platelet count -
\150,000 - 300,000/mcL
reticulocyte count -
\0.5 - 1.5% of red cells
,amylase, serum -
\25 - 125 U/L
arterial studies, blood (Patient breathing room air): PO2 -
\75-100 mmHg
arterial studies, blood (Patient breathing room air): PCO2 -
\38-42mmHg
arterial studies, blood (Patient breathing room air): Bicarbonate -
\23-26 mEq/L
arterial studies, blood (Patient breathing room air): pH -
\7.38 - 7.44
arterial studies, blood (Patient breathing room air): Oxygen Saturation -
\95% or greater
bicarbonate, serum -
\23 - 28 mEq/L
bilirubin, serum: -
\Total 0.3 - 1.0 mg/dL
Direct 0.1 - 0.3 mg/dL
Comprehensive metabolic panel:
Bilirubin, serum (total) -
\0.3 - 1.0 mg/dL
Comprehensive metabolic panel:
calcium, serum -
\Male: 9.0 -10.5mg/dL
Female: 8.5 - 10.2mg/dL
Comprehensive metabolic panel:
cholesterol, serum (total) -
\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
Comprehensive metabolic panel:
creatinine, serum -
\0.7-1.5 mg/dL
Glucose, plasma -
, \Normal (fasting); 70 -115 mg/dL
Borderline: 115-140 mg/dL
Abnormal: greater than 140 mg/dL
phosphorus, serum -
\3.0 - 4.5 mg/dL
Proteins, serum:
Pre-Albumin -
\0.2 - 0.4 g/dL
Proteins, serum:
Albumin -
\3.5 - 5.5 g/dL
Urea nitrogen, blood (BUN) -
\8 - 20 mg/dL
Uric acid, serum -
\3.0 -7.0 mg/dL
Cholesterol serum:
High density lipoprotein (HDL) -
\Low: less than 40 mg/dL
Cholesterol serum:
Low density lipoprotein (LDL) -
\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
Triglycerides, serum (fasting) -
\Normal: less than 250mg/dL
Borderline: 250 - 500 mg/dL
Abnormal: greater than 500 mg/dL
Electrolytes, serum:
sodium -
\136 - 145 mEq/L
Electrolytes, serum:
potassium -
\3.5-5.0 mEq/L
Success
bleeding time (template) -
\less than 10 minutes
erythrocyte count -
\4.2 - 5.9 million/mcl
erythrocyte sedimentation rate (Westergren) -
\Male: 0-15mm/hr
Female: 0-20 mm/hr
hematocrit, blood -
\Male: 42-50%
Female: 40 - 48%
hemoglobin, blood -
\Male: 13-16 g/dl
Female: 12-15 g/dl
leukocyte count and differential -
\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
mean corpuscular volume -
\86-98 fL
protrhombin time, plasma -
\11-13 seconds
partial thromboplastin time (activated) -
\30-40 seconds
platelet count -
\150,000 - 300,000/mcL
reticulocyte count -
\0.5 - 1.5% of red cells
,amylase, serum -
\25 - 125 U/L
arterial studies, blood (Patient breathing room air): PO2 -
\75-100 mmHg
arterial studies, blood (Patient breathing room air): PCO2 -
\38-42mmHg
arterial studies, blood (Patient breathing room air): Bicarbonate -
\23-26 mEq/L
arterial studies, blood (Patient breathing room air): pH -
\7.38 - 7.44
arterial studies, blood (Patient breathing room air): Oxygen Saturation -
\95% or greater
bicarbonate, serum -
\23 - 28 mEq/L
bilirubin, serum: -
\Total 0.3 - 1.0 mg/dL
Direct 0.1 - 0.3 mg/dL
Comprehensive metabolic panel:
Bilirubin, serum (total) -
\0.3 - 1.0 mg/dL
Comprehensive metabolic panel:
calcium, serum -
\Male: 9.0 -10.5mg/dL
Female: 8.5 - 10.2mg/dL
Comprehensive metabolic panel:
cholesterol, serum (total) -
\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
Comprehensive metabolic panel:
creatinine, serum -
\0.7-1.5 mg/dL
Glucose, plasma -
, \Normal (fasting); 70 -115 mg/dL
Borderline: 115-140 mg/dL
Abnormal: greater than 140 mg/dL
phosphorus, serum -
\3.0 - 4.5 mg/dL
Proteins, serum:
Pre-Albumin -
\0.2 - 0.4 g/dL
Proteins, serum:
Albumin -
\3.5 - 5.5 g/dL
Urea nitrogen, blood (BUN) -
\8 - 20 mg/dL
Uric acid, serum -
\3.0 -7.0 mg/dL
Cholesterol serum:
High density lipoprotein (HDL) -
\Low: less than 40 mg/dL
Cholesterol serum:
Low density lipoprotein (LDL) -
\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
Triglycerides, serum (fasting) -
\Normal: less than 250mg/dL
Borderline: 250 - 500 mg/dL
Abnormal: greater than 500 mg/dL
Electrolytes, serum:
sodium -
\136 - 145 mEq/L
Electrolytes, serum:
potassium -
\3.5-5.0 mEq/L
