STD Treatment Clinic Nepal in Thamel, Kathmandu offers comprehensive HIV window period testing. The HIV PCR/RNA test detects HIV as early as 10 days post-exposure. The 4th generation combo test is accurate from 18-45 days. PEP (Post-Exposure Prophylaxis) is available within 72 hours. All testing is 100% confidential. Call +977-9700682800.

HIV Window Period Nepal: When to Test After Exposure

Expert guidance on HIV testing timelines, window periods, and early detection in Nepal. Reviewed by Dr. G.P. Yadav (MBBS, MD) — NMC Reg: 15834.

10 days
Earliest HIV detection (PCR)
18-45 days
4th Gen combo test
72 hours
PEP window for prevention
100%
Confidential testing

What is the HIV Window Period?

The HIV window period is the time between HIV exposure and when a test can reliably detect the virus. During this period, you may be infected with HIV but still test negative — because your body has not yet produced enough HIV antigens or antibodies for detection.

Understanding the window period is critical for accurate HIV diagnosis. Testing too early gives false-negative results. The correct test, done at the right time, ensures you receive an accurate diagnosis.

⚠️ Nepal context: If you had potential HIV exposure within 72 hours, come immediately for PEP — do not wait for the window period to pass. PEP must be started within 72 hours to be effective.

HIV Window Period by Test Type – Available in Nepal

HIV Test TypeWindow PeriodWhat It DetectsCost (NPR)
HIV PCR / RNA / NAT Test10–14 daysHIV RNA (viral genetic material) — earliest detection3,000–5,000
5th Generation HIV Test15–20 daysp24 antigen + HIV-1/HIV-2 antibody differentiation2,500–3,500
4th Generation Ag/Ab Combo Test18–45 daysHIV p24 antigen + HIV-1/HIV-2 antibodies1,200–1,500
HIV Rapid Test23–90 daysHIV antibodies — results in 20 minutes500–800

* All tests available at STD Treatment Clinic, Thamel, Kathmandu. Results same-day to 24 hours.

HIV Testing Timeline After Exposure in Nepal

🚨
Within 72 Hours of Exposure
EMERGENCY: Get PEP immediately. Post-Exposure Prophylaxis prevents HIV if started within 72 hours. Call +977-9700682800 now. Do not wait.
⏱️
10–14 Days Post-Exposure
HIV PCR/RNA test is the only test that can detect HIV at this stage. Recommended for high-risk exposures (sex worker contact, needle sharing, rape).
🔬
18–45 Days Post-Exposure
4th generation HIV combo test (Ag/Ab) is highly accurate at this stage. Most reliable standard screening window. Recommended for most situations.
45+ Days Post-Exposure
Definitive negative result from 4th generation test at 45 days. A negative result at this stage means no HIV infection from this exposure.

🚨 HIV PEP (Post-Exposure Prophylaxis) in Nepal — Act Within 72 Hours

If you had potential HIV exposure within the last 72 hours, come to our clinic immediately.PEP (Post-Exposure Prophylaxis) is an HIV prevention medication that is up to 99% effective if started within 72 hours.

  • ✓ Available at STD Treatment Clinic, Thamel, Kathmandu
  • ✓ 24/7 emergency availability — call first
  • ✓ 28-day treatment course
  • ✓ Confidential and anonymous
  • ✓ Doctor-supervised: Dr. G.P. Yadav (NMC: 15834)
📞 Emergency: +977-9700682800

HIV in Nepal — Facts & Context

Nepal has an estimated 24,000–30,000 people living with HIV. Key population groups at higher risk include men who have sex with men (MSM), people who inject drugs, sex workers, and migrants returning from high-prevalence areas. The National Centre for AIDS and STD Control (NCASC) reports that HIV testing rates declined significantly in 2025 following reductions in foreign aid — making private confidential clinics like ours increasingly important.

High-Risk Contexts in Nepal

  • • Unprotected sex with new partners
  • • Returning migrants from high-prevalence areas (India, Gulf)
  • • Commercial sex work (Thamel, tourist areas)
  • • Needle/syringe sharing
  • • LGBTQ+ community (higher prevalence MSM)
  • • Blood transfusions before 2001 in Nepal

Why Test at Our Clinic

  • • 100% confidential — no name required
  • • Same-day results available
  • • 4th and 5th generation tests
  • • PCR/RNA early detection
  • • NMC-registered physician
  • • No stigma, no judgment

Frequently Asked Questions — HIV Window Period Nepal

What is the HIV window period?

The HIV window period is the time between HIV exposure and when a test can accurately detect the infection. During this period, a person may be HIV-positive but test negative. The window period length depends on which test you use — it ranges from 10 days (PCR/RNA test) to 45 days (4th generation combo test) to 90 days (older antibody tests).

How long is the HIV window period in Nepal with modern testing?

At STD Treatment Clinic Nepal, we use the most advanced HIV testing available. The 4th generation HIV Ag/Ab combo test has a window period of 18–45 days. Our HIV RNA/NAT PCR test can detect HIV as early as 10–14 days after exposure — the shortest window period available in Nepal.

When should I get tested for HIV after unprotected sex in Nepal?

For the most accurate results, we recommend: HIV RNA/PCR test at 10–14 days (earliest detection), 4th generation combo test at 18–45 days, confirmatory test at 45 days. If you are concerned about recent exposure (within 72 hours), come immediately for PEP (Post-Exposure Prophylaxis) — do not wait for testing.

Can I get HIV PEP in Nepal within 72 hours of exposure?

Yes. STD Treatment Clinic Nepal provides HIV PEP (Post-Exposure Prophylaxis) within 72 hours of potential exposure. PEP is 99% effective at preventing HIV if started within 72 hours. Call +977-9700682800 immediately if you have had a potential HIV exposure — this is a medical emergency.

What is the most accurate HIV test in Nepal?

The HIV PCR/RNA test is the most accurate with the shortest window period (10–14 days). The 4th generation Ag/Ab combo test is highly accurate from 18 days post-exposure. Our clinic offers all HIV test types: rapid tests, 4th gen combo, 5th gen, PCR RNA, viral load, and early detection tests.

Is HIV testing confidential at STD Treatment Clinic Nepal?

Yes. All HIV testing at our clinic is 100% confidential. No records are shared without your consent. We offer anonymous HIV testing — no identity required for basic testing. Results are provided only to you in a private consultation.

How much does HIV testing cost in Nepal?

HIV rapid test: NPR 500–800 (20 min results). 4th generation combo test: NPR 1,200–1,500. HIV PCR/RNA test (earliest detection): NPR 3,000–5,000. Consultation fee: NPR 450 only. We offer the most affordable confidential HIV testing in Kathmandu.

Get Confidential HIV Testing Today in Kathmandu

Walk-in or appointment. Same-day results. 100% confidential. No judgment. Located in Bhagwatibahal, Thamel, Kathmandu — Nepal's most trusted STD clinic.

Hours: 9am–9pm daily • Bhagwatibahal, Thamel, Kathmandu

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