LAB CE Chemistry ASCP Review

In the condition kernicterus, the abnormal accumulation of bilirubin occurs in what tissue?

Brain

In patients with suspected primary hypothyroidism associated with Hashimoto's thyroiditis, one would expect the following laboratory test results: T4 ___? TSH ___? TRH stimulation ___?

Decreased, increased, increased

cause of metabolic alkalosis

Excessive vomiting

Calculate LDL cholesterol concentration if total cholesterol is 280 mg/dL, triglyceride is 100 mg/dL, and the HDL cholesterol is 40.0 mg/dL.

220 mg/dL

What percentage of dietary iron is normally absorbed daily?

5% to 15%

Which of the following lipoproteins will form a creamy layer at the top of stored, non-fasting plasma specimens?

Chylomicrons

Jaundiced patient experiencing a marked rise in alkaline phosphatase (ALP), conjugated bilirubin, and a slight rise in alanine aminotransferase (ALT)?

Post-hepatic cholestasis

An obese adult with premature arteriosclerosis is seen in the clinic. When her serum is tested no chylomicrons are present, LDL levels are normal, and VLDL levels are increased. There is an increase in triglycerides and slight increase in cholesterol. Lipoprotein electrophoresis reveals a heavy pre-beta band. She has no skin rash and uric acid is increased. This patient most likely has what type of hyperlipoproteinemia?

Type IV (Based on the information provided, the patient has hyperlipoproteinemia type IV which is assoicated with high triglycerides and increased VLDL. It is also known as hypertriglyceridemia)