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Home > Conditions & Concerns > Diagnostic Tests > Blood : Special Tests

Blood : Special Tests

Antiglobulin (Coomb's ) Cross-matching

The antiglobulin cross-match, if compatible, is a high degree of assurance that the transfused blood will be successfully accepted by the patient.

Tests To Be Performed And Criteria For Blood Transfusion

Most important tests performed are 

1. Blood grouping and Rh factor

2. Antibody detection by indirect antiglobulin (Coomb's) test for a typical, incomplete antibodies

Other tests performed on collected blood are 

1. Hepatitis - B surface antigen

2. AIDS antibodies

3. Syphilis (VDRL) test

4. Malarial parasites.

Criteria accepted for selection of donor 

	The age should be above 18 - 60 years
	Hemoglobin should not be less than 12.5 g/dl
	Interval of 16 weeks should be there between two donations
	Pulse rate should be regular and between to 78 -100/min
	Accepted Blood Pressure Systolic: between 90 - 150 mm Hg. Diastolic: between 50 -100 mm Hg.
	Body temperature of donor should be normal
	Absence of any chronic disease

The donor is rejected if 

1. There is a history of viral hepatitis or AIDS

2. There is a history of malaria for the last three years

3. If the patient has received immunization against rabies, mumps, rubella, small pox within two months

4. If the donor has undergone dental surgery within  72 hours

Semi-quantitative determination of Anti-D Antibody Titer

This is useful to defect hemolytic disease of the newborn