The quality of any laboratory test result is majorly dependent on the correct specimen , which can be ensured by following simple specimen collection instructions and guidelines.
Here we attempt to provide a few GUIDELINES for the same.
Many tests require that the patient be prepared in some specific way to ensure useful results.
For most of the tests performed on serum, plasma or whole blood, a fasting specimen is preferred since this provides information that reflects the physiological baseline of the patient.
Also, non fasting samples are often lipemic, containing high triglycerides from food, which can interfere with many analytical procedures.
An ideal fasting period would be for 12-14 hours especially for triglyceride estimations.
Each submitted specimen must be labeled with the patients name (as it appears on the requisition slip) and the tests to be conducted.
Collect the blood using routine phlebotomy techniques.
Gently mix the samples within the appropriate container (if anticoagulant is required).Do not mix vigorously as it may cause hemolysis.
If serum is required, then do not shake the container after collection. Allow the tube / vacutainer to stand for a while before transport.
Sample collection instructions:
Specimens for aerobic cultures should be submitted under aseptic conditions in the sterile container provided by ADC.
Cytopathology requests should mandatorily include the following information:
Patient preparation for Gynaecologic specimens :
For routine histopathology submissions, the request form should include all the details as enlisted under Cytopathology.
Instructions for specimen handling :
The blood chromosomal analysis test is used to determine the genetic cause for mental retardation , congenital anomalies, infertility , miscarriage , still birth and ambiguous genitalia , to confirm or exclude the diagnosis of chromosomal syndromes.
Kindly prefix appointments with the laboratory before sampling, for instructions.
Kindly contact the lab for specific instructions.
Indicated for various Immune deficiency panels, Leukemia/lymphoma panels, Obstetric flow panel and DNA ploidy , HLA B-27 and S phase fractions.
Kindly prefix appointments with the lab for specific instructions.