Private HIV p24 Antigen Test London
The HIV p24 antigen test can detect HIV infection earlier than antibody tests alone, during the acute infection phase before antibodies develop.
Price
£66
+ £50 blood draw
- Results within 1 day"
- Confidential service
- No GP referral needed
- Professional clinical environment
- Results via secure portal
- Nurse-led expert care
Private Early HIV Detection in London
South Kensington Medical & Dental offers early HIV detection testing at our CQC-registered clinic. This test is designed for individuals who require screening at an earlier stage following potential exposure, typically using p24 antigen detection or RNA-based methods.
Testing requires a venous blood sample, with results available within 1 working day. This test is priced at £66 (includes £50 phlebotomy fee). Early detection testing can identify HIV infection sooner than standard antibody-based screening.
No GP referral is needed. All samples are processed at UKAS-accredited laboratories. Results are communicated confidentially and, where appropriate, followed up with confirmatory testing.
Why Early Detection Matters
Standard antibody-based HIV tests have a window period of approximately 4 weeks. During this time, an infected individual may test negative despite being positive. Early detection tests can reduce this window period by detecting p24 antigen, which appears in the blood before antibodies develop.
Early identification of HIV infection allows for prompt initiation of antiretroviral therapy (ART), which improves individual health outcomes and significantly reduces the risk of onward transmission. The PARTNER study demonstrated that individuals with an undetectable viral load cannot transmit HIV sexually.
When to Choose Early Detection Testing
Recent exposure (within 4 weeks)
Standard antibody tests may not be reliable during this early window period.
High-risk exposure
Occupational needle-stick injuries, sexual assault, or condom failure with a known positive partner.
Anxiety about waiting
Earlier testing provides quicker reassurance or enables faster access to treatment.
PEP assessment
Can help determine HIV status when post-exposure prophylaxis is being considered.
Earlier Detection
p24 antigen testing can detect HIV during the acute phase, before antibodies are detectable.
- Earlier detection possible
- Detects acute infection
- High viral load phase
- Part of 4th gen tests
- Important for recent exposure
Strictly Confidential
Your privacy is protected
Fast Results
Results within 1 day"
Expert Care
Professional clinical team
Accurate Testing
Lab-certified results
How It Works
Book Online
Choose a convenient date and time
Visit Clinic
Quick and discreet appointment
Sample Collection
Professional, comfortable process
Get Results
Results within 1 day"
Frequently Asked Questions
p24 is a protein from the HIV virus that can be detected in blood before antibodies develop.
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Meet Our Medical Team
Our experienced medical team is fully qualified and registered with the GMC and NMC, delivering safe, high-quality care in line with the highest professional standards.
Because our patients deserve nothing less.
Registered. Regulated. Trusted.
At South Kensington Medical & Dental, we are fully registered with the Care Quality Commission (CQC) and our clinicians are registered with the relevant UK regulatory bodies, including the GDC and GMC. Our dentists, dental nurses and medical professionals deliver care that meets the highest clinical, safety and ethical standards, because our patients deserve nothing less.
