Pituitary Gland Physiology MCQs
Comprehensive MCQs dedicated to pituitary gland physiology and relevant clinical correlates.
Normal Laboratory Reference values
| Laboratory Test | Normal Range in US Units | Normal Range in SI Units | To Convert U.S. to SI Units |
| ALT (Alanine aminotransferase) | F 7-30 units/L | F 0.12-0.50 µkat/L | x 0.01667 |
| M 10-55 units/L | M 0.17-0.92 µkat/L | ||
| Albumin | 3.1 – 4.3 g/dL | 31 – 43 g/L | x 10 |
| Alkaline Phosphatase | F 30-100 units/L M 45-115 units/L | F 0.5-1.67 µkat/L M 0.75-1.92 µkat/L | x 0.01667 |
| Amylase (Serum) | 53-123 units/L | 0.88-2.05 nkat/L | x 0.01667 |
| AST (Aspartate aminotransferase) | F 9-25 units/L | F 0.15-0.42 µkat/L | x 0.01667 |
| M 10-40 units/L | M 0.17-0.67 µkat/L | ||
| Basophils | 0-3% of lymphocytes | 0.0-0.03 fraction of white blood cells | x 0.01 |
| Bilirubin – Direct | 0.0-0.4 mg/dL | 0-7 µmol/L | x 17.1 |
| Bilirubin – Total | 0.0-1.0 mg/dL | 0-17 µmol/L | |
| Blood pressure | Normal: 120/70 to 120/80 millimeters of mercury (mmHg). Top number is systolic pressure, when heart is pumping. Bottom number is diastolic pressure when heart is at rest. Blood pressure can be too low (hypotension) or too high (hypertension). | No conversion | |
| C peptide | 0.5-2.0 ng/mL | 0.17-0.66 nmol/L | x 0.33 |
| Calcium, serum | 8.5-10.5 mg/dL | 2.1-2.6 mmol/L | x 0.25 |
| Calcium, urine | 0-300 mg/24hr | 0.0-7.5 mmol/24hr | x 0.025 |
| CO2 (Bicarbonate) | 20-32 mmol/L | 20-32 mmol/L | No conversion |
| Chloride | 95-108 mmol/L | 95-108 mmol/L | No conversion |
| Cholesterol, Total | <200 mg/dL | <5.17 mmol/L | x 0.02586 |
| Marginal | 200-239 mg/dL | 5.17-6.18 mmol/L | |
| High | >239 mg/dl | >6.18 mmol/L | |
| Cholesterol, LDL | <100 mg/dL | <2.59 mmol/L | |
| Marginal | 100-159 mg/dL | 2.59-4.14 mmol/L | |
| High | 160-189 mg/dL | 4.14 – 4.89 mmol/L | |
| Very High | >190 mg/dL | >4.91 mmol/L | |
| Cholesterol, HDL | >60 mg/dL | >1.55 mmol/L | |
| Moderate | 40-60 mg/dL | 1.03-1.55 mmol/L | |
| Low (heart risk) | <40 mg/dL | <1.03 mmol/L | |
| Cortisol: serum free (urine) | 0-25 µg/dL (depends on time of day) | 0-690 nmol/L | x 27.59 |
| 20-70 µg/dL | 55-193 nmol/24hr | x 2.759 | |
| Creatine kinase | F 40-150 units/L M 60-400 units/L | F 0.67-2.50 µkat/L M 1.00-6.67 µkat/L | x 0.01667 |
| Creatinine (urine) | F 0.6-1.8 g/day M 0.8-2.4 g/day | F 5.3-15.9 mmol/day M 7.1-21.2 mmol/day | x 88.4 |
| DHEA | F 130-980 ng/dL M 180-1250 ng/dL | F 4.5-34.0 nmol/L M 6.24-43.3 nmol/L | x 0.03467 |
| DHEA Sulfate | F Pre-menopause: 12-535 µg/dL | F Pre-menopause: 120-5350 µg/L | x 10 |
| F Post-menopause: 30-260 µg/dL | F Post-menopause: 300-2600 µg/L | ||
| M 10-619 µg/dL | M 100-6190 µg/L | ||
| Eosinophils | 0-8% of white blood cells | 0.0-0.8 fraction of white blood cells | x 0.01 |
| Erythrocyte sedimentation rate (Sed Rate) | F £ 30 mm/h M £ 20 mm/h | F £ 30 mm/h M £ 20 mm/h | No conversion |
| Folate | 3.1-17.5 ng/mL | 7.0-39.7 nmol/L | x 2.266 |
| Glucose, urine | <0.05 g/dl | <0.003 mmol/L | x 0.05551 |
| Glucose, plasma | 70-110 mg/dL | 3.9-6.1 mmol/L | |
| Gamma glutamyl transferase (GGT) | F £ 45 U/L M £ 65 U/L | F £ 45 U/L M £ 65 U/L | No conversion |
| Laboratory Test | Normal Range in U.S. Units | Normal Range in SI Units | To Convert US to SI Units |
| Hematocrit | F 36.0-46.0% of red blood cells | F 0.36-0.46 fraction of red blood cells | x 0.01 |
| M 37.0-49.0% of red blood cells | M 0.37-0.49 fraction of red blood cells | ||
| Hemoglobin | F 12.0-16.0 g/dL M 13.0-18.0 g/dL | F 7.4-9.9 mmol/L M 8.1-11.2 mmol/L | x 0.6206 |
| Lactate dehydrogenase (LDH) (total) | £ 270 U/L | £ 4.5 µkat/L | X 0.016667 |
| Lactic acid | 0.5-2.2 mmol/L | 0.5-2.2 mmol/L | No conversion |
| Leukocytes (WBC) | 4.5-11.0 x 103/mm3 | 4.5-11.0 x 109/liter | No conversion |
| Lymphocytes | 16-46% of white blood cells | 0.16-0.46 fraction of white blood cells | x 0.01 |
| Mean corpuscular hemoglobin (MCH) | 25.0-35.0 pg/cell | 25.0-35.0 pg/cell | No conversion |
| Mean corpuscular hemoglobin concentration (MCHC) | 31.0-37.0 g/dL | 310-370 g/L | x 10 |
| Mean corpuscular volume (MCV) | F 78-102 µm3 M 78-100 µm3 | F 78-102 fl M 78-100 fl | No conversion |
| Monocytes | 4-11% of white blood cells | 0.04-0.11 fraction of white blood cells | x 0.01 |
| Neutrophils | 45-75% of white blood cells | 0.45-0.75 fraction of white blood cells | x 0.01 |
| Phosphorus | 2.5-4.5 mg/dL | 0.81-1.45 mmol/L | X 0.323 |
| Platelets (Thrombocytes) | 130-400 x 103/µL | 130-400 x 109/L | No conversion |
| Potassium | 3.4-5.0 mmol/L | 3.4-5.0 mmol/liter | No conversion |
| Red Blood Cell Count (RBC) | F 3.9-5.2 x 106/µL M 4.4–5.8 x 106/µL | F 3.9-5.2 x 1012/L M W 4.4-5.8 x 1012/L | No conversion |
| Sodium | 135-145 mmol/liter | 135-145 mmol/liter | No conversion |
| Testosterone, total (morning sample) | F 6-86 ng/dL | F 0.21-2.98 nmol/liter | x 0.03467 |
| M 270-1070 ng/dL | M 9.36-37.10 nmol/liter | ||
| Testosterone, Age 20-40 Unbound Age 41-60 Age 61-80 | F 0.6-3.1 pg/mL M 15.0-40.0 pg/mL | F 20.8-107.5 pmol/liter M 520-1387 pmol/liter | x 34.67 |
| F 0.4-2.5 pg/mL M 13.0-35.0 pg/mL | F 13.9-86.7 pmol/liter M 451-1213 pmol/liter | ||
| F 0.2-2.0 pg/mL M 12.0-28.0 pg/mL | F 6.9-69.3 pmol/liter M 416-971 pmol/liter | ||
| Triglycerides Normal (fasting) Borderline High Very High | 40-150 mg/dL 150-200 mg/dL 200-500 mg/dL >500 mg/dL | 0.45-1.69 mmol/liter 1.69-2.26 mmol/liter 2.26-5.65 mmol/liter >5.65 mmol/liter | x 0.01129 |
| Urea, plasma (BUN) | 8-25 mg/dL | 2.9-8.9 mmol/liter | x 0.357 |
| Urinalysis: pH Specific gravity | 5.0-9.0 | 5.0-9.0 | No conversion |
| 1.001-1.035 | 1.001-1.035 | ||
| WBC (White blood cells, Leukocytes) | 4.5-11.0 x 103/mm3 | 4.5-11.0 x 109/liter | No conversion |
thank you