Retesting interval

1. Chemical Pathology

All test requested within retesting interval MUST BE consulted with Medical Officer or Chemical Pathologist Integrated Laboratory HQE. Failure to do so may lead to rejection. Please check and trace previous lab results from iLab prior to sending new test request. 

1. Creatinine: Once daily.

2. Osmolality: Once every seven (7) days.

3. Liver Function Test: Once every three (3) days.

   • Exception (Please CLEARLY STATE the indication to repeat in the request form):

     • Acute Poisoning (e.g. Acetaminophen poisoning).

     • Acute Liver Injury/Acute Hepatitis due to any cause.

     • Pre- and Post-Hepatobiliary Procedure/Operation.

     • Intensive Care Unit (ICU) patients.

     • Patient on Total Parenteral Nutrition (TPN).

4. Specific Protein (Ig G/A/M, C3, C4): Once every five (5) days.

5. Tumour Markers (except Total BhCG): Once a month.

6. Thyroid Function Test: Once a month. Exception for:

   • Paediatric patient. Kindly write patient’s age/day of life.

   • Maternal/Antenatal/Postnatal.

   • Cases under Endocrine clinic follow-up.

   • All cases that require retesting prior to allowable retesting interval must be discussed with Chemical Pathologist HQE.

7. Lipid Profile: Once every three (3) months.

8. HbA1c: Once every six (6) months except pediatric patients < 18 years old and patient with previous HbA1c result of more or equal to 7.5% - three (3) months.

   • Patient with transfusion-dependent hematological disorders (e.g. Thalassemia Major) will be rejected due to non-suitability of sample for analysis.

9. Iron Studies: Once every three (3) months.

   • Exception (Please CLEARLY STATE the indication to repeat in the request form):

     • Ferritin for Covid 19

     • Ferritin for Hemophagocytic lymphohistiocytosis (HLH)

10. Protein Electrophoresis: Once every three (3) months.

11. Rheumatoid Factors (RF): Once every six (6) months.

12. Vitamin B12 and Folate: Once every three (3) months.

2. Hematology

1. BCR-ABL quantitative assay: Six monthly.

2. CD4/CD8 enumeration: Six monthly.

3. FBC: Once daily.

4. Hb analysis: Do not repeat unless suggested by the Pathologist.

5. PBF: 7 days.