Home blood sample collection makes routine laboratory testing more convenient. Here is what to expect before, during and after your appointment.
Why Are Blood Tests Requested?
Blood tests can provide healthcare professionals with useful information about different aspects of your health. Depending on your symptoms, medical history or health screening requirements, laboratory investigations may be used to assess areas such as:
- blood cell levels
- blood glucose
- cholesterol and lipid levels
- liver and kidney function
- thyroid function
- vitamin levels
- inflammation and infection markers
- other investigations recommended by your healthcare professional
The tests you require should be based on your individual healthcare needs. A doctor may recommend specific investigations following a consultation or as part of ongoing health monitoring.
Do I Need to Prepare Before My Blood Test?
Preparation depends on the tests being performed.
Many routine blood tests require no special preparation. However, some investigations may require fasting or other specific instructions beforehand.
If fasting is required, you may be asked to avoid food and beverages other than plain water for a specified period before your sample is collected. The exact fasting requirement can vary depending on the investigation.
It is important to follow the instructions provided when your appointment is arranged because eating, drinking or other factors may affect certain laboratory results.
What About Regular Medication?
Do not stop or change prescribed medication unless your treating healthcare professional specifically advises you to do so.
Some investigations can be affected by medicines or supplements, so let the healthcare team know what you are currently taking when arranging your test.
If you have diabetes, take regular medication or have a health condition that may make fasting unsuitable, ask for specific advice before beginning a fast.