Mass Concentration Measurement Units:

- United States: grams per deciliter (g/dL) or grams per liter (g/L)
- International Units (IU): Based on biological activity or mass equivalence, typically expressed in deciliters (dL) in the US and liters (L) in countries like Sweden.

Enzyme Activity Measurement Units:

- Sweden: Katal (kat) for liver function tests (e.g., AST, ALT, LD, v-GT)

Molar Concentration Measurement Units:

- United Kingdom, Europe, Australia, New Zealand: Molar concentration (mol/L)

Purpose of Laboratory Tests:

- Diagnosis or exclusion of specific diseases or conditions
- Monitoring the progression or treatment of existing diseases
- Assessing overall health and risk for certain conditions
- Screening for potential health risks
- Evaluating changes in health over time

Laboratory Test Examples:

- Human papillomavirus (HPV) test: Diagnosis and screening for HPV infection
- Complete blood count: Routine test to measure blood components
- Pap test: Screening for cervical cancer
- Blood glucose test: Monitoring diabetes and treatment