Pituitary Gland Physiology MCQs
Comprehensive MCQs dedicated to pituitary gland physiology and relevant clinical correlates.
Normal Laboratory Reference values
| Â 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 | Â 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). Â 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 |
| CO2Â (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 | Â 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