The Vitamin A looks at vitamin A level. It is done for: night blindness, malnutrition.
General health information, not a diagnosis. In an emergency, call 102. Always consult a qualified health professional.
Night blindness, malnutrition.
No fasting needed. Laboratory-specific; see the reference range on your report. High or positive may mean: Excess supplements. Low or negative may mean: Deficiency. General information, not a diagnosis. Results must be interpreted by a qualified health worker.
Vitamin A level.
Blood
Excess supplements.
Deficiency.
Reference ranges vary by lab, age and sex — always use the range printed on your own report.
Consult a doctor to interpret results — a single test does not make a diagnosis.
Uses your location once to list the nearest facilities. Nothing is stored.
What does the Vitamin A measure?
Vitamin A level.
Why is the Vitamin A done?
Night blindness, malnutrition.
Do I need to fast for the Vitamin A?
No fasting needed.
What does a high or positive Vitamin A mean?
Excess supplements.
What does a low or negative Vitamin A mean?
Deficiency.
What is the normal range for the Vitamin A?
Laboratory-specific; see the reference range on your report.
Why is Vitamin A done?
Night blindness, malnutrition.
Do I need to prepare or fast for Vitamin A?
No fasting needed. Laboratory-specific; see the reference range on your report. High or positive may mean: Excess supplements. Low or negative may mean: Deficiency. General information, not a diagnosis. Results must be interpreted by a qualified health worker.
SI text CC BY 4.0; decoder reference data (cited per range); LOINC codes free with attribution (notice included).
Sources: SI health summary (own words); MedlinePlus Lab Tests and CDC as references