Procalcitonin (PCT) Test in Chennai

What is a PCT Blood Test?

The PCT blood test measures levels of procalcitonin, a peptide produced by various body cells in response to bacterial toxins. In healthy individuals, procalcitonin remains very low, but it rises quickly and significantly during systemic bacterial infections, particularly severe ones like sepsis.

Procalcitonin Test Purpose

The Procalcitonin test purpose is primarily to:

Distinguish bacterial infections from viral or non-infectious inflammatory conditions

Assess risk of progression to severe sepsis or septic shock in critically ill patients

Guide antibiotic initiation or discontinuation, supporting antimicrobial stewardship

Monitor response to treatment in sepsis or severe bacterial infections

Aid in evaluating postoperative bacterial complications or respiratory infections

When is a PCT Test Recommended?

Doctors may order this test when:

A patient shows signs of systemic infection or possible sepsis (fever, chills, rapid heart rate, low blood pressure)

Differentiating bacterial from viral causes in lower respiratory tract infections, meningitis, or pneumonia

Monitoring critically ill patients in ICU for sepsis risk on admission

Assessing need for antibiotics in suspected bacterial infections

Tracking treatment effectiveness or deciding when to stop antibiotics safely

Evaluating complications after major surgery, trauma, or in immunocompromised individuals

Preparation for the PCT Test

No special preparation is typically needed:

Fasting is not required.

Inform your doctor about current medications, supplements, or recent treatments.

The test can be performed at any time, even in emergency situations.

The Procedure

A simple blood draw is taken from a vein in your arm:

The area is cleaned with an antiseptic.

A needle collects a small sample (usually 1–2 ml).

The sample is sent to the laboratory for analysis using sensitive immunoassays.

Results are often available within hours to a day, depending on urgency.

The process is quick, minimally uncomfortable, and carries no significant risks beyond a standard blood test.

PCT Blood Test Normal Range

Normal procalcitonin levels in healthy adults are very low. Interpretation often uses these approximate guidelines (in ng/mL or µg/L):

< 0.1–0.25 ng/mL: Normal or low risk of bacterial infection

0.25–0.5 ng/mL: Possible mild bacterial involvement; interpret with clinical context

0.5–2 ng/mL: Suggests moderate risk of sepsis; further evaluation needed

2–10 ng/mL: High risk of severe sepsis

10 ng/mL: Very high likelihood of severe sepsis or septic shock

Results must always be reviewed alongside symptoms, other tests, and clinical judgement.

PCT Test Price

At Unittas Hospital, we ensure accessible diagnostics with transparent pricing. The PCT test price is competitive and varies based on urgency or packages; contact our team for current details and any insurance options.

Why Choose Unittas Hospital?

Unittas Multispeciality Hospital is a NABH-accredited centre with branches in Tambaram and Kelambakkam, conveniently located for patients across Chennai and the OMR corridor. Our state-of-the-art in-house laboratory features advanced analysers for precise diagnostic testing, supported by experienced pathologists and specialists who deliver expert interpretation and personalised guidance.

We ensure quick turnaround with same-day or next-day results in most cases, comfortable phlebotomy areas, private spaces for result discussions, and seamless connections to specialist consultations — all in a single facility. With a strong emphasis on compassionate, patient-focused care, hygienic premises, and flexible timings, Unittas is a trusted choice for reliable diagnostics in Chennai.