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Blood Tests

🩸 Blood Tests Overview

A blood test is a laboratory analysis of a blood sample, usually taken from a vein in the arm. It helps doctors assess overall health, detect diseases, and monitor ongoing treatments.


🔹 Common Types of Blood Tests

  1. Complete Blood Count (CBC)

    • Checks red blood cells, white blood cells, hemoglobin, and platelets.

    • Helps detect anemia, infections, or blood disorders.

  2. Blood Glucose Test

    • Measures sugar levels in the blood.

    • Used for diabetes screening and management.

  3. Lipid Profile

    • Measures cholesterol (HDL, LDL) and triglycerides.

    • Assesses heart and vascular health.

  4. Liver Function Test (LFT)

    • Checks enzymes and proteins to evaluate liver health.

  5. Kidney Function Test (KFT / RFT)

    • Measures creatinine, urea, and electrolytes.

  6. Thyroid Profile (T3, T4, TSH)

    • Evaluates thyroid gland function.

  7. Vitamin & Mineral Tests

    • Vitamin D, Vitamin B12, Calcium, Iron, etc.

  8. Infectious Disease Tests

    • HIV, Hepatitis, Malaria, Typhoid, Dengue, etc.


🔹 Why Blood Tests Are Important

  • Detect health problems early

  • Monitor chronic diseases (diabetes, heart disease, thyroid)

  • Guide treatment decisions

  • Check the effectiveness of medication

  • Ensure overall wellness


🔹 Preparation for a Blood Test

  • Some tests require fasting for 8–12 hours

  • Drink water to stay hydrated

  • Inform the doctor about ongoing medications


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