Urgently — in 2–4 hours — laboratories do the complete blood count, basic chemistry (glucose, creatinine, ALT, AST, bilirubin), ESR, CRP, urinalysis, coagulation tests and a number of rapid tests. Hormones, PCR, cultures and tumor markers physically need from several hours to several days of instrument time — paying extra cannot speed them up. Before booking, look not for the word “urgent” on the price list but at the “turnaround” column.
What speed depends on: the queue or the method
The turnaround of a test has two parts. The first is the laboratory queue: tubes wait to be loaded into the analyser, which is usually run in batches. The second part cannot be shortened — it is the method itself: photometric glucose takes minutes, while growing a culture on a nutrient medium takes a day, because bacteria divide at their own pace, not the patient's.
So an “urgent test” only speeds up the first part: your tube is processed ahead of the queue and the instrument is run for it immediately. You pay extra for breaking the standard cycle. If the method is long, urgency is pointless: honest laboratories simply do not offer such a service, and that is a good sign.
What is really done in 2–4 hours
Routine tests are available in urgent mode: the complete blood count with differential, ESR, urinalysis. From blood chemistry — glucose, creatinine, urea, ALT and AST, total bilirubin, amylase, total protein, electrolytes. Coagulation markers — prothrombin, INR, aPTT, fibrinogen — also belong to the fast methods. Many laboratories offer an express version of CRP and procalcitonin.
The standard scenario: you give the sample in the morning before 10–11 am, and the result arrives the same day by 2–4 pm. This is how hospital laboratories work before emergency surgery — planned patients can use the same mode at commercial laboratories.
What will not get faster: real turnaround by test type
Hormones — from several hours to 1–2 working days: immunochemistry runs in series, and the laboratory waits to fill a batch. HbA1c — usually the next working day. PCR testing for infections — 1–2 days: the reaction runs in cycles with controls. Cultures — 3 to 7 days plus time to test antibiotic sensitivity. Tumor markers — 1–3 days. Histology — a week or more, as tissue goes through multi-step processing. When planning tests for a doctor's appointment, start from the slowest test on the list.
Urgent or standard: when paying extra makes sense
Paying extra for urgency is justified in three cases: tomorrow you have surgery or a procedure that needs a fresh result; the doctor is waiting for the result to start or adjust treatment today; you are monitoring a marker that changes quickly and affects a drug dose. If it is a routine check-up “for yourself”, the standard turnaround of one or two days is no worse — the only difference is the price.
A separate point about how “fresh” results are: many tests have a validity period for hospital admission — usually 10–14 days for a complete blood count and urinalysis. Taking them well in advance “to be safe” is as pointless in this case as taking them on the last day.
How not to overpay or be late
Three working tips. First: look at the “turnaround” column on the price list, not the advertising word “express” — at some laboratories the standard turnaround is already “same day”, so there is nothing to pay extra for. Second: give the sample in the morning — a daytime draw automatically pushes the result to the evening or the next day. Third: if only one test on the list is critical, order only that one as urgent and the rest as standard.
Urgent testing at home: how to combine the two
A nurse home visit and urgent processing are compatible, with one caveat: the turnaround is counted not from the nurse's visit but from the moment the tube reaches the laboratory. If the nurse is doing a round of several addresses, the sample will be processed 2–4 hours after the draw. For truly urgent situations, ask when booking exactly when the sample will be at the laboratory — sometimes it is faster to go to the nearest treatment room yourself. More on home visits in the guide on testing at home.
Rapid tests and test strips: where they fit
Rapid tests are a separate category: throat strep antigen, flu and COVID tests, rapid HIV and syphilis tests, urine test strips. They give an answer in 10–20 minutes, but they are screening, not diagnosis: a positive result is confirmed with laboratory methods, and a negative one does not replace a doctor's examination when symptoms are obvious. Home urine test strips are useful as a reason to book a doctor, but not as grounds for self-treatment — their sensitivity is noticeably lower than the laboratory's.
- In 2–4 hours: CBC, urinalysis, basic chemistry, coagulation tests
- Hormones, PCR, cultures and tumor markers cannot be sped up
- “Urgent” = ahead of the queue, same method
- Look at “turnaround” on the price list, not “express” in the ads
- Morning draw = result the same day
- Order only the critical test on the list as urgent
The result has arrived — what next?
Upload the PDF report from the laboratory to MedProtect: the app will explain every marker, show deviations and suggest what to ask your doctor.
Frequently asked questions
What does “urgent test” mean on a price list?
It is a test with priority processing: the sample is handled ahead of the queue and the result is issued within a few hours. The measurement method itself is the same — only the place of your tube in the laboratory queue changes.
Can any test be done urgently?
No. Urgent mode is only possible for tests with a fast method — routine haematology and blood chemistry. Cultures, PCR, most hormones and tumor markers physically need hours or days of instrument time, and paying extra cannot speed them up.
Is an urgent result less accurate?
No, if the method is the same. Accuracy is determined by the analyser and the reagents, not by the speed of the queue. Only the set of markers may differ: an “express chemistry” panel is sometimes shorter.
What if I need the result “right now”?
With acute symptoms — chest pain, high fever that is getting worse, injury — do not wait for a private laboratory: go to the emergency department or call an ambulance. There, key tests are done as Cito in 30–60 minutes.
When should I give the sample so the result is ready for the doctor in the morning?
Give it the day before, before 12:00 — then even “slower” tests will be ready by the evening or overnight. If the test takes long (culture, PCR), plan the appointment date with a margin of 3–5 days.
Sources
- Order of the Russian Ministry of Health No. 804n of 13.10.2017 “Nomenclature of medical services” — Garant (in Russian; checked 15.09.2026)
- Order of the Russian Ministry of Health No. 464n of 18.05.2021 “Rules for conducting laboratory tests” (in Russian; checked 15.09.2026)
- The journey of a blood sample from the tube to the result — MedProtect (checked 15.09.2026)