Standard Preoperative Blood Workup

A preoperative surgical blood work-up is a standard part of the pre-surgical assessment to ensure a patient is fit for surgery and to anticipate any complications (e.g. bleeding, anemia, infection, organ dysfunction). The following tests are included in this package:

1. Complete Blood Count (CBC)

• Purpose: Detect anemia, infection, platelet disorders.

• Includes:

  • Hemoglobin & Hematocrit (oxygen-carrying capacity)

  • White Blood Cells (infection, immune status)

  • Platelets (clotting ability)

2. Coagulation Profile

• Purpose: Assess bleeding/clotting risk.

• Tests:

  • PT/INR (Prothrombin Time / International Normalized Ratio)

  • aPTT (Activated Partial Thromboplastin Time)

3. Renal Function Tests

• Purpose: Check kidney function before anesthesia.

• Tests:

  • Blood Urea Nitrogen (BUN)

  • Creatinine

4. Electrolytes

• Purpose: Detect imbalances that may affect anesthesia/surgery.

• Common tests:

  • Sodium

  • Potassium

  • Chloride

  • Bicarbonate

5. Liver Function Tests (LFTs)

• Purpose: Evaluate liver’s ability to metabolize medications.

• Includes:

  • AST, ALT

  • ALP

  • Bilirubin

6. Blood Glucose / HbA1c

• Purpose: Identify uncontrolled diabetes (especially in known/suspected diabetics).

7. Blood Typing & Crossmatch

• Purpose: Prepare for possible transfusion (especially in major surgeries or patients with anemia).

  • ABO & Rh type

  • Crossmatch (if transfusion likely)

Test Requirements:
• 6 to 12-hour fasting required
• Professional blood draw (arm vein)
• Processed at our CLIA-certified lab