How long do blood test reports take, and why do some take longer?

Medically reviewed by our consultant obstetrician & gynaecologist (MBBS, MS OBG). Last reviewed: 14 November 2026.

How long do blood test reports take?

It depends on the test. At Pai Hospital, routine tests such as a blood count, blood sugar, kidney and liver tests are done on automated analysers inside the hospital, and most routine reports are usually ready within hours.

Not every test follows the same clock. Read on to see which tests take longer and why. For how the lab works and which tests it does, see the laboratory at Pai Hospital, Vasco.

Why do some tests take longer?

There are three common reasons:

• Tests run at set times. Some tests are run together in a group, at set times, instead of one sample at a time. A sample for such a test waits for its group.
• Cultures. A culture looks for bacteria that grow from a urine or other sample, and then checks which antibiotics work against them. The bacteria need time to grow, so a culture report usually takes a few days.
• Tests sent to a partner laboratory. Some specialised tests are not done inside the hospital. The sample is sent to a partner laboratory, and these reports take longer. The lab staff will tell you the expected day.

Why are emergency samples taken up first?

A woman in labour, a patient being prepared for an operation or a patient admitted in an emergency may need a result before the doctor can decide on the next step. So emergency samples from the wards and the labour room are taken up first. On a busy day this can mean a routine outpatient report waits a little longer.

The laboratory is open 24 hours, every day, so samples from the wards can be sent at any hour. Read what happens to an emergency blood sample at night.

Does the daily quality check change the time?

Sometimes. Every day, quality-control samples are run before patient reports are released. If a check has to be repeated, reports on that test wait until the check is back within its limits. Read what the lab checks every day.

How do I collect my report?

• When you give the sample, ask the lab staff when your report will be ready and how to collect it.
• For a test sent to a partner laboratory, note the expected day the staff give you.
• Call or WhatsApp the laboratory to check that the report is ready before you come.
• Keep your reports together in one folder, old ones included.

When should I take the report to my doctor?

Take it at the visit your doctor has asked for, along with your earlier reports, so the doctor can compare. If your doctor asked for an urgent test, follow what the doctor told you about when to come back. If you feel unwell while you wait for a report, do not wait for the report; see a doctor.

Can I make my report come out sooner?

You can avoid a repeat sample. Follow the preparation the lab or your doctor gives you, such as fasting for some tests, and say your full name clearly when the sample is taken. A sample that has to be taken again costs you time. Read blood test preparation and reports.

Who explains my report?

Your treating doctor. A report is read together with your symptoms and your examination, so please do not start or stop any medicine based on the report alone. Written and reviewed by the Pai Hospital Team.

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This page is for general education and is not personal medical advice. Treatment depends on your own examination and reports, so please speak to a doctor about your situation. We do not carry out or offer sex determination of any kind.