Lab Med 241-257 Flashcards
When are LFT’s highest?
In acute hepatic necrosis
When are OTC pregnancy tests definitive?
Approximately 4 weeks after 1st day of last menses
When are total proteins low?
In starvation
When does bilirubinuria occur?
Biliary obstruction
Hepatocellular damage
Dubin-Johnson syndrome
Rotor’s syndrome
When is a decrease in serum iron seen?
Iron deficiency Chronic inflammatory disorders Hemmorrhage Blood donation Menstruation
When is an increase in serum iron seen?
After use of BC Iron poisoning Ingestion/IV Hepatitis Hemosiderosis/hemochromatosis
When is blood ammonia elevated?
Severe liver disease
impending hepatic coma
When is delta-bilirubin increased?
In prolonged conjugated hyperbilirubinemia
Causes disease to persist because highly bound to albumin
When is serum ferritin elevated?
Viral hepatitis Iron storage diseases RA Renal disease Malignancies
When is TIBC decreased?
CAMM Chronic inflammatory disorders Acute inflammation Malignancies Malnutrition
When is TIBC increased?
In iron deficiency
When is TSI present?
In Grave’s disease (mimics TSH and does not respond to feedback)
Where is alkaline phosphatase found?
Bone, GI, placenta, tumors, biliary tract
Where is gamma glutamyl transferase found?
Liver,
pancreas
kidney (high amounts)
Why is ethylene glycol dangerous?
CNS depressant with toxic metabolites (myocardial depression, renal necrosis)
Severe hypOcalcemia
Elevated osmol gap
Elevated anion gap
