Phenylketonuria (PKU) is a genetic disease that results in the body's inability to correctly metabolize:
a. glucose.
b. phenylalanine.
c. phenylketones.
d. thyroxine.
ANS: B
PKU is an inborn error of metabolism caused by a deficiency or absence of the enzyme needed to metabolize the essential amino acid phenylalanine. Phenylalanine hydroxylase is missing in PKU. Individuals with this disorder can metabolize glucose. Phenylketones are metabolites of phenylalanine, excreted in the urine. Thyroxine is one of the principal hormones secreted by the thyroid gland.
You might also like to view...
Liver failure may affect the synthesis of fibrinogen, resulting in
a. jaundice. c. delayed clotting. b. fluid retention and ascites. d. hepatomegaly.
The nurse is describing the differences between the different types of dependence and abuse. Which type of dependence causes uncomfortable symptoms when the drug is stopped?
1. Substance dependence 2. Physical dependence 3. Psychological dependence 4. Psychosocial dependence
An 85-year-old widower is brought to an emergency department by his caregiver. The client has a fractured arm, is soaked in urine, and has dried fecal matter on him
His right cheek is freshly bruised and he has bruises and abrasions on his abdomen in multiple stages of healing. He is 6 feet tall and weighs only 120 pounds. Which type of response, when asked about his injuries, should a nurse anticipate from this client? A) Will honestly reveal the nature of his injuries B) May deny or minimize the injuries C) May have forgotten what happened to him D) Will ask to be placed in a nursing home
A child who has poor absorption, diarrhea, vomiting, dehydration, or peripheral vascular collapse should be administered a medication by which route?
A. SC B. IM C. IV D. PO