Withholding medication before a test involves temporarily stopping certain medications as instructed by a healthcare provider to ensure accurate test results or prevent interactions that could affect the outcome.

Seminal fluid collection is the process of obtaining a semen sample, typically for fertility analysis, medical diagnosis, or reproductive purposes.

The Overnight 1mg Dexamethasone Suppression Test is a diagnostic procedure used to assess cortisol production by administering 1mg of dexamethasone at night and measuring cortisol levels the next morning.

The Non-invasive Prenatal Test (NIPT) is a screening method that analyzes fetal DNA in a pregnant woman's blood to detect genetic conditions, such as Down syndrome, without posing risks to the fetus.

The Group B Streptococcus (GBS) screening test is a prenatal test that checks for the presence of GBS bacteria in a pregnant woman’s vagina or rectum to prevent infection in newborns during childbirth.

The Urea Breath Test is a non-invasive procedure used to detect Helicobacter pylori infection in the stomach by measuring carbon dioxide levels in the breath after ingesting a urea solution.

The Breath Hydrogen Test measures hydrogen levels in the breath to diagnose conditions like lactose intolerance or small intestinal bacterial overgrowth (SIBO) by analyzing how the body digests certain sugars.

Holter monitoring is a continuous, 24-48 hour recording of heart activity using a portable ECG device to detect irregular heart rhythms or other cardiac conditions.

The Glucose Tolerance Test (GTT) measures the body's ability to process glucose by taking blood samples before and after consuming a glucose solution, commonly used to diagnose diabetes or gestational diabetes.

Faecal Occult Blood Collection is a test that checks for hidden (occult) blood in the stool, which may indicate gastrointestinal issues such as colorectal cancer or bleeding ulcers.

Sputum collection involves obtaining a mucus sample from the lungs or respiratory tract to diagnose infections, such as pneumonia or tuberculosis, or to evaluate other lung conditions.

Ambulatory Blood Pressure Monitoring (ABP) is a method of measuring blood pressure continuously over 24 hours using a portable device, providing insight into blood pressure patterns throughout daily activities and sleep.