All tests

Express diagnosis of STDs using PCR

Helps diagnose rheumatoid arthritis

Helps assess natural killer cell populations and immune function as part of specialised immune or haematological investigations

Monitoring of cancer, especially colorectal cancer. Can be elevated in smokers

Helps to diagnose and monitor muscle damage and certain heart or brain conditions

Detects toxins of Clostridium difficile, often recommended in cases of diarrhoea following antibiotic use

Test is used to diagnose bleeding or clotting disorders, monitor anticoagulant therapy, and check liver function

Important for: Pregnant women, immunocompromised patients, organ donors

A 24-hour urine sodium test measures the total amount of sodium excreted by the kidneys over a 24-hour period to assess dietary salt intake and evaluate sodium balance and kidney function

Helps assess copper deficiency or excess and investigate disorders affecting copper metabolism, nutritional status or liver function

Assessment of cortisol levels, a stress hormone, possibly via PCR assay

Shown is - Acute phase protein, a marker of inflammation