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NCLEX Lab Values
Lab Values per Saunder's 4th Edition NCLEX RN by Linda Anne Silvestri
| Term | Definition |
|---|---|
| Sodium | 135-145 mEq/L |
| Potassium | 3.5-5.1 mEq/L |
| Chloride | 98-107 mEq/L |
| Bicarbonate (arterial) | 22-26 mEq/L |
| aPTT, Activated partial thromboplastin time | 20-26 seconds aPTT should be 1.5-2.5 times normal when receiving heparin therapy |
| PT (male) Prothrombin time | 9.6-11.8 seconds (male adult) |
| PT (female) Prothrombin time | 9.5-11.3 seconds (female adult) |
| INR, (Standard warfarin therapy) International normalized ratio | 2.0-3.0 seconds, Standard warfarin therapy |
| INR, (High-dose warfarin therapy) International normalized ratio | 3.0-4.5 seconds, High-dose warfarin therapy |
| Platelets | 150,000-400,000 cells/mm3 |
| Hemoglobin (male adult) | 14-16.5 g/dL |
| Hemoglobin (non-pregnant female adult) | 12-15 g/dL |
| Hematocrit (male adult) | 42%-52% |
| Hematocrit (non-pregnant female adult) | 35%-47% |
| RBC (male adult) | 4.5-6.2 million/microL |
| RBC (non-pregnant female adult) | 4.0-5.5 million/microL |
| Troponin I | <0.6 ng/mL >1.5 ng/mL indicates myocardial infarction |
| Troponin T | >0.1-0.2 ng/mL indicates myocardial infarction |
| Albumin | 3.4-5.0 g/dL |
| Glucose (fasting blood glucose) | 70-110 mg/dL |
| Creatinine (serum) | 0.6-1.3 mg/dL |
| Blood, urea, nitrogen | 8-25 mg/dL |
| Calcium | 8.6-10.0 mg/dL |
| Magnesium | 1.6-2.6 mg/dL |
| Phosphorus | 2.7-4.5 mg/dL |
| WBC | 4,500-11,000 cells/mm3 |
| Urine Specific Gravity | 1.016-1.022 |
| Protein Total amount of albumin and globulins in plasma | 6.0-8.0 g/dL |
| Alkaline phosphatase | 4.5-13 King-Armstrong units/dL |
| Ammonia | 35-65 mg/dL |
| Lithium, Therapeutic Levels | 0.6-1.2 mEq/L |
| Serum Osmolality (Adults) | 280 - 300 mOsm/kg water |
| Serum Osmolality formula based on sodium | 2 x (Na+) |
| Serum Osmolality formula based on Glucose/BUN | Glucose/18 + BUN/3 |
| Anion Gap (applies to metabolic acidosis) simple formula | (Na+) - [(Cl-) + (HCO3-)] |
| Anion Gap (normal value) | 8 - 12 mEq/L |
| Hemoglobin (Newborn) | 17 - 20 g/dL |
| Hematocrit (Newborn) | 52% - 63% |
| Platelets (Newborn) | 100,000 - 300,000 cells/microL |
| RBC (Newborn) | 5.1 - 5.8 million/microL |
| WBC (Newborn) | 10,000 - 30,000 cells/mm3 |
| Hemoglobin (Pregnant female) | 11.5 - 14 g/dL, < 10 indicates anemia |
| Hematocrit (Pregnant female) | 32% - 42% |
| RBC (Pregnant female) | 3.5 - 5.0 million/microL |
| WBC (Pregnant female) | 5,000 - 15,000 cells/mm3 |
| Platelets (Pregnant female) | No significant change until 3 to 5 days after delivery, then a marked increase. |
| Ejection Fraction (EF) for adult heart | 55%-65% of ventricular volume |
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