Haemoglobin Test

Haemoglobin Blood Test

A routine haemoglobin blood test examination is a blood test usually done with a haematocrit or as part of a complete blood count test to diagnose or screen several conditions and diseases that affect red blood cells (RBCs)

Why is the Haemoglobin blood test Prescribed?

A doctor may prescribe a haemoglobin test as a part of a routine check-up or in the following conditions

What are the components of haemoglobin blood tests?

Haemoglobin is an iron-containing protein in red blood cells (RBCs) with an oxygen binding capacity, it also gives blood the red colour. It carries oxygen to the lungs. The haemoglobin test measures the amount of haemoglobin in a sample of blood.

Low haemoglobin indicates Anaemia which can be-

High haemoglobin indicates polycythaemia which can be due to

Procedure and prerequisites

A blood sample is taken from the vein in the arm using a small needle. There is no need to fast if one is going only for a hemoglobin test, but if other blood tests are also recommended, the patient needs to fast as guided by the doctor.

Reference range

These values are for theoretical reference and may vary depending on age, gender.