Red Blood Cell Count (RBC)

The Red Blood Cell (RBC) count measures the number of red blood cells in your blood.
RBCs carry oxygen to body tissues. Abnormal values can indicate anemia, dehydration, or bone marrow problems.

Group Normal Range (million/µL) Low RBC (Causes) High RBC (Causes)
Men 4.7 – 6.1
  • Anemia (Iron, B12, Folate deficiency)
  • Blood loss (injury, ulcers, menstruation)
  • Bone marrow problems
  • Chronic illnesses
  • Polycythemia vera
  • Dehydration
  • Smoking
  • Chronic lung disease
  • High altitude living
Women 4.2 – 5.4
Children 4.1 – 5.5

Why Doctors Prescribe RBC Test

  • To diagnose different types of anemia
  • Check oxygen-carrying capacity of blood
  • Monitor chronic diseases and bone marrow health
  • Routine health check-up

White Blood Cell Count (WBC)

The White Blood Cell (WBC) count measures the number of leukocytes in the blood.
WBCs help fight infections. Abnormal levels indicate infection, immune problems, or bone marrow disorders.

Parameter Normal Range (cells/µL) Low WBC (Causes) High WBC (Causes)
Total WBC Count 4,000 – 11,000
  • Viral infections (HIV, hepatitis)
  • Bone marrow disorders
  • Autoimmune diseases
  • Chemotherapy or radiation therapy
  • Bacterial infections
  • Inflammation
  • Leukemia
  • Stress or smoking

Why Doctors Prescribe WBC Test

  • To detect infections and inflammations
  • Monitor immune system function
  • Check for bone marrow disorders and leukemia
  • Assess response to treatment

Platelet Count

The Platelet count test measures the number of platelets (thrombocytes) in the blood.
Platelets are essential for blood clotting. Abnormal levels can cause excessive bleeding or clotting disorders.

Parameter Normal Range (/µL) Low Platelets (Causes) High Platelets (Causes)
Platelet Count 150,000 – 450,000
  • Dengue and viral infections
  • Bone marrow disorders
  • Autoimmune diseases (ITP, lupus)
  • Certain medications
  • Inflammation
  • Iron deficiency anemia
  • Infections
  • Myeloproliferative disorders (blood cancers)

Why Doctors Prescribe Platelet Test

  • To evaluate bleeding or clotting disorders
  • Monitor conditions like dengue, anemia, or bone marrow diseases
  • Assess response to treatment
  • Routine health screening