A 22-year-old female whose brother is diagnosed with Duchenne muscular dystrophy (DMD) wants to know if her children will inherit it. A fairly accurate test to identify female carriers of the disease is measurement of serum levels of:

a. dystrophin.
b. myoglobin.
c. creatine kinase (CK).
d. troponin 1.

ANS: C
Diagnosis is confirmed by measuring the blood CK level, which is sometimes 100 times the nor-mal level, with confirmation by genetic testing for mutations in the dystrophin gene.
None of the other options is relevant to this screening.

Health Professions

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All of the following changes were a result of managed care EXCEPT:

a. physicians' having to wait 30 days or longer for payment. b. physicians' having more responsibility for filing claims. c. patients' having to pay for services when rendered. d. physicians' having to add to their staff.

Health Professions

Active-duty service members are NOT eligible to enroll in:

TRICARE Standard. TRICARE Extra. TRICARE Prime. CHAMPVA.

Health Professions