A 5-year-old boy was diagnosed with Duchenne muscular dystrophy less than 18 months ago.
The client presents with fatigue, and muscular weakness and is having difficulty running, and often falls majority of his attempts.
Which of the following would the nurse expect to be elevated in Duchenne muscular dystrophy?
Lactate Dehydrogenase.
C-Reactive Protein.
Erythrocyte sedimentation rate.
Creatine kinase.
The Correct Answer is D
In patients with Duchenne muscular dystrophy (DMD), creatine kinase levels are often increased to levels that are 50-100 times the reference range.

Choice A is incorrect because lactate dehydrogenase is not typically elevated in DMD.
Choice B is incorrect because C-reactive protein is not typically elevated in DMD.
Choice C is incorrect because the erythrocyte sedimentation rate is not typically elevated in DMD.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
The Ortolani test is a screening test that would help rule out a hip problem related to babies who are breech.
It is used to check for developmental dysplasia of the hip (DDH).
Choice A is not an answer because bracing is a treatment for DDH, not a screening test.
Choice B is not an answer because genu valgum is a condition where the knees angle in and touch each other when the legs are straightened, and it is not a screening test for DDH.
Choice C is not an answer because the Adams test is used to screen for scoliosis, not DDH.
Correct Answer is A
Explanation
The umbilical vein carries oxygen-rich blood to the fetus from the placenta.
The umbilical vein is an important part of fetal circulation and carries oxygenated blood from the placenta into the growing fetus.

Choice B is incorrect because the two umbilical arteries carry deoxygenated blood from the fetus to the placenta23.
Choice C is incorrect because there are not two umbilical veins, but only one12.
Choice D is incorrect because it is not the one umbilical artery that carries oxygen-rich blood to the fetus from the placenta, but rather the one umbilical vein14.
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