Correct Answer: A

Rationale: The correct answer is A. Duchenne muscular dystrophy is an X-linked recessive disorder, meaning the gene mutation causing DMD is located on the X chromosome. Males have one X chromosome and one Y chromosome, so if the X chromosome they inherit from their mother carries the mutated gene, they will develop DMD. Females have two X chromosomes, so they are carriers of the gene but are usually not affected by the disease. Therefore, the nurse should explain to the parents that DMD is an inherited X-linked recessive disorder that primarily affects male children in the family.

Correct Answer: D

Rationale: The correct answer is D: Reduction of edema. Albumin helps reduce edema by increasing oncotic pressure, drawing fluid back into the blood vessels. In nephrotic syndrome, there is an abnormal loss of protein in the urine, leading to decreased oncotic pressure and fluid shifting into the interstitial spaces, causing edema. Administering albumin helps restore the oncotic pressure, reducing edema, which is a desirable effect of the medication.

Correct Answer: A

Rationale: Ovulation typically occurs about 14 days before the start of the next menstrual period. This timing allows for the released egg to travel down the fallopian tube where it may be fertilized by sperm, leading to conception. Understanding the timing of ovulation is crucial for couples trying to conceive to increase their chances of success.

Correct Answer: A

Rationale: In infants, a weak cry without tears is a classic sign of dehydration. Tears are produced by the lacrimal glands, and reduced tear production is a result of dehydration. This assessment finding should alert the nurse to the infant's dehydration status, requiring prompt intervention to prevent further complications.

Correct Answer: A

Rationale: A heart rate below 100 bpm in a newborn indicates bradycardia and requires intervention. Positive pressure ventilation should be initiated to improve oxygenation and help increase the infant's heart rate. This intervention is crucial to support the newborn's transition to extrauterine life and prevent further complications.