1,25-dihydroxyvitamin D (calcitriol)
This test measures 1,25-dihydroxyvitamin D, the biologically active form of vitamin D. It is used to investigate calcium imbalance, kidney disease and...
This PCR screen detects seven common sexually transmitted infections with high accuracy. It identifies active infections even when symptoms are mild or absent.
Turnaround time
Full results available 2 weeks after arrival in lab. Interim report released initially. Doctor's report sent the day after results available (if required)
Biomarkers count
7
Professional phlebotomist comes to you
+ £{{ home_visit_fee }}
Visit our clinic for your test
{{ clinic_visit_fee > 0 ? '+ £' + clinic_visit_fee : 'Free' }}
{{ clinic.full_address }}
{{ selectedClinic.full_address }}
Available time slots: {{ timeSlots.length}}
{{ addon.excerpt }}
Selected
The 7 STI PCR Screen is a molecular test that detects the genetic material of seven common sexually transmitted infections using polymerase chain reaction (PCR) technology. PCR is highly sensitive and specific, allowing accurate identification of active infections even at very low levels.
This test is designed to identify current infections rather than past exposure. It is particularly useful for early detection, asymptomatic screening, and confirming infections when symptoms are unclear or inconsistent.
By testing multiple infections at once, this panel provides a comprehensive overview of sexual health in a single assessment, supporting timely diagnosis and treatment.
You may need this test if you are sexually active and want to screen for infections that may not cause immediate symptoms. Many STIs remain asymptomatic for long periods while still being transmissible and capable of causing long-term complications.
PCR testing is especially important after unprotected sex, a new partner, or if you or your partner have symptoms such as discharge, pain or irritation. Early detection allows prompt treatment, reduces transmission risk and helps prevent complications affecting fertility and general health.
Symptoms and scenarios where testing is recommended:
Testing can be completed at a UK clinic or through professionally supported sample collection, depending on sample type.
You can download and share your results with your GP or sexual health specialist if needed.
Negative Results
Negative PCR results indicate no detectable STI DNA was found.
This suggests no active infection at the time of testing.
Normal / Expected Findings
Expected results confirm absence of the infections tested.
Routine screening may still be recommended depending on risk.
Positive Results
Positive results confirm an active STI.
This indicates current infection and the need for appropriate treatment and follow-up.
Partner testing and treatment may also be advised.
Discover more options in this category:
This test measures 1,25-dihydroxyvitamin D, the biologically active form of vitamin D. It is used to investigate calcium imbalance, kidney disease and...
This test measures 17-hydroxyprogesterone, a hormone involved in cortisol production. It is used to assess adrenal function and diagnose congenital ad...
This test measures 6-thioguanine nucleotide levels to monitor thiopurine medications. It helps optimise treatment effectiveness while reducing toxicit...
This test detects antibodies against acetylcholine receptors involved in muscle contraction. It is a key investigation for diagnosing myasthenia gravi...
This test measures total acid phosphatase, an enzyme found in several body tissues. It is mainly used in the assessment of prostate-related and certai...