master nursing labs

Sodium (Na⁺)

135–145 mEq/L - neuro and seizures

Potassium (K⁺)

3.5–5.0 mEq/L - heart and arrhythmias

Magnesium (Mg²⁺)

1.5–2.5 mEq/L - energy/ muscle coordination and nerve function

Calcium (Total Ca²⁺)

9.0–10.5 mg/dL - bones and strength

Phosphorus (Phosphate)

2.5–4.5 mg/dL - j w calcium

Glucose (fasting)

70–99 mg/dL

Hemoglobin A1C

<5.7% (normal) - 3 month long glucose control

BUN

10–20 mg/dL - shows DEHYDRATION and decreased kidney function

Creatinine

0.6–1.2 mg/dL - kidney damage

eGFR

60 mL/min/1.73 m² - kidney damage

White Blood Cells (WBC)

5,000–10,000/mm³ - infections

Red Blood Cells (RBC)

4.2-6.1 million higher for males - blood lolz

Hemoglobin (Hgb)

females 12-16 males 14-18 - low = anemic or bleeding and high means dehydrated bc the blood is more concentrated

Hematocrit (Hct)

36%-48% for women and 41%-50% for males - low = anemic or bleeding and high means dehydrated bc the blood is more concentrated

Platelets

150,000–400,000/mm³ - clotting

PT

11–13 seconds - time it should take to clot

INR

0.8–1.1 (2–3 if on warfarin) - warfarin lab

aPTT

30–40 seconds (60–80 seconds on heparin) - heparin lab

Troponin

<0.04 ng/mL - heart attack/heart MI damage

BNP

<100 pg/mL - heart muscle stretch from HF and fluid overload

Lactate

0.5–2.2 mmol/L - poor tissue perfusion, sepsis, shock

AST

10–40 U/L - shows liver dfamage

ALT

7–56 U/L - shows liver damage

Total Bilirubin

0.2–1.2 mg/dL - indicates liver failure and jaundice

Albumin

3.5–5.0 g/dL - shows malnutrition if decreased- albumin is a liver protein

Lipase

0–160 U/L - pancreatitis

Amylase

30–110 U/L - pancreatitis