Trolend Laboratories - Patient preparing for tests

Patient Preparation Guide

Simple instructions to help you prepare correctly for your tests and get accurate, reliable results.

Core Diagnostic Tests

Preparation guidelines for common blood and laboratory tests offered under our core diagnostic services.

Fasting Blood Tests

Applicable for: Fasting Blood Sugar (FBS), Lipid Profile, some hormone and special biochemistry tests.

•Fast for 10–12 hours before the test (no food, tea, coffee, or juice).
•You may drink small sips of plain water unless advised otherwise by your doctor.
•Take your regular medicines only if your doctor has advised you to continue them while fasting.
•Avoid alcohol for at least 24 hours before the test.

Routine Blood Tests

Applicable for: Full Blood Count (FBC/CBC), ESR, CRP, most serology tests and many hormone tests.

•No special fasting is usually required unless your doctor specifies otherwise.
•Avoid heavy, oily meals and alcohol for 8–12 hours before testing if possible.
•Inform us if you are currently on antibiotics, steroids, or blood thinners.

Glucose & Diabetes Tests

Preparation steps for fasting, post‑meal and glucose tolerance tests.

FBS / PPBS / RBS

•Fasting Blood Sugar (FBS): 8–10 hours fasting (only plain water). Do not drink tea, coffee or juice.
•Post‑Prandial Blood Sugar (PPBS): The sample is taken exactly 2 hours after starting your main meal (usually breakfast or lunch).
•Random Blood Sugar (RBS): No fasting is required.

Oral Glucose Tolerance Test (OGTT)

•Have at least 3 days of normal diet and usual physical activity before the test.
•Fast for 8–10 hours overnight (only plain water allowed).
•Do not smoke or chew gum during the test period.
•Plan to stay at the laboratory for 2–3 hours until all samples are collected.

Urine & Stool Tests

Clean and properly collected samples are essential for accurate urine and stool test results.

Urine Routine & Culture

•Use a clean, dry, wide‑mouth container (preferably provided by the laboratory).
•Wash the genital area with clean water and dry with a clean towel before collection.
•Collect the mid‑stream portion of the first morning urine, unless advised otherwise.
•Deliver the sample to the laboratory within 1 hour of collection.

Stool Routine & Culture

•Use the sterile, leak‑proof container provided by the laboratory.
•Avoid contamination with urine or water from the toilet.
•Collect a small portion from different areas of the stool (especially mucus or blood‑stained areas, if present).
•Bring the sample to the laboratory as soon as possible, ideally within 1–2 hours.

General Preparation Tips

These simple steps apply to most of our tests and help ensure smooth sample collection and accurate reports.

Medications

Do not stop any regular medicines without your doctor's advice. Always inform our staff about any medications or supplements you are taking.

Hydration & Diet

Avoid heavy, oily meals and alcohol the day before testing. Drink enough water, unless you have been given specific fluid restrictions.

Timing & Documents

Bring your doctor's request form, previous reports (if any), and ID card. Arrive a little early, especially for fasting and timed tests.

These are general preparation guidelines. Always follow your doctor's specific instructions if they are different from the information provided here. If you are unsure, please contact our team before your visit.