Vitamin A (retinol) (HPLC) (s) (Serum, frozen (s))

Specimens:	500 µl Serum, frozen (s)
Preanalytics/Notes:	Protect sample from exposure to light. Due to its low stability we will not perform analyses on full blood and plasma samples. Please send serum for analysis.
Method:	HPLC
Dimension:	mg/l
Set-up:	Mon Tue Wed Thu Fri Sat Sun
Duration:	3 days
Indication/Significance:	Malabsorption syndrome Night blindness: Impaired twilight vision, increased sensitivity to blinding Suspected overdose of parenteral substitution
Interpretation:	Decreased in the case more… Decreased in the case of: Malabsorption syndromes: Sprue, coeliac disease, short-gut syndrome, enteritis, Crohn's disease, lambliasis Maldigestion syndromes: Chronic cholestatic liver and bile duct diseases (bile acid deficiency), exocrine pancreatic insufficiency Decreased storage/transport of vitamin A: Liver cirrhosis, premature infants, RBP deficiency, nephrotic syndrome Increased in the case of: Excessive intake due to self-medication Vitamin A therapy, e.g. in the case of acne and psoriasis close