NRSG200 Serum Lab Values for Adults

Flashcards covering key serum lab values, their reference ranges, and explanations for adults.

Chloride

reference range of 95-105 mEq/L.

Explanation: Electrolyte, fluid and pH status

Blood Urea Nitrogen (BUN)

reference range 10-20 mg/dL.

explanation: Indicates hydration status and renal function

Creatinine

reference range: 0.5-1.5 mg/dL.

explanation: Measures renal function

Glucose

Normal range: 70-100 mg/dL.
explanation: glucose level

Hemoglobin A1C

Range: 4-5.6%

explanation: long term index of glucose

Potassium

Range: 3.5-5 mEq/L.

Explanation: electrolyte nerve and muscle contraction

Magnesium

Range: 1.3-2.2 mEq/L

Explanation: electrolyte muscle and bone health

Sodium

Range: 135-145 mEq/L

Explanation: electrolyte fluid/ electrolyte balance nerve and muscle contraction

Calcium

Range: 8.5 – 10.6 mg/dL

explanation: electrolyte bone health

Hematocrit (Hct)

males: 42-52%

females:37-47%

Explanation: RBC volume

Hemoglobin (Hgb)

males: 14-18 g/dL

females: 12-16 g/dL

Explanation: oxygen carrying capacity

Mean Corpuscular Volume (MCV)

Range: 80-95 fL

Explanation: RBC size

Mean Corpuscular Hemoglobin (MCH)

Range: 27-33 pg

Explanation: Hgb per RBC (color)

Leukocytes (WBCs)

Range: 4,500-10,000/mm3.

explanation: Inflammation/ infection

Platelet Count

Range: 150,000-400,000/mm3

explanation: clotting ability

Neutrophils

Range: (55-70%)

Explanation: acute bacterial infection

Lymphocytes

Range: (20-40%)

Explanation: acute viral infection.

Monocytes

Range: (2-8%)

Explanation: secondary response to infection

Eosinophils

Range: (1-4%)

Explanation: involved in allergic responses.

Basophils

Range: (0.5-1%)

Explanation: respond to inflammation.

Partial Thromboplastin Time (PTT)

Range: 30-40 sec

Therapeutic: 60-90 sec

Critical: > 100 sec

Explanation: clotting mechanism Heparin IV

Prothrombin Time (PT)

Range: 11-12.5 sec

Explanation: clotting mechanism warfarin

International Ratio (INR)

Range:0.8-1.1

Therapeutic: 1.5-3x

Critical: >5

Explanation: clotting mechanism warfarin