Kenya Medical Laboratory Tests

Hepatitis B - (HBsAg) surface antigen Test in Kenya

Brief Description

This is a blood test"," used for detection of HBs antigen in serum. It is prescribed to individuals suspected of Hepatitis B infections


HBsAg"," HBV"," Hepatitis-associated Antigen"," Qualitative HBV surface antigen

Patient Preparation

Patients taking biotin supplement are advised to abstain at least 72 hours to sample collection for more precise results.

Sample Type

Serum or plasma

Sample volume

3.5 mL

Sample collection Container

Red-top tube"," gel-barrier tube"," or lavender-top (EDTA) tube

Sample collection instructions

If sample is not collected in gel-barrier tube"," separated plasma or serum should be transferred to a plastic transport tube.

Sample storage

stable at room temperature/refrigerated/frozen for 14 days

Reference range


Results Turnaround

1-2 days after receipt of samples

Diseases / Diagnostic Indicators

Positive HBsAg surface antigen"," is associated with Dark urine"," Fever"," Joint pain"," Loss of appetite"," Nausea and vomiting"," Weakness and fatigue"," jaundice