Pediatric HESI

Correct Answer: A

Rationale: By 6 months of age, infants typically achieve the milestone of rolling over completely. This ability demonstrates increasing strength and coordination. Creeping on all fours, pulling self to a standing position, and assuming a sitting position independently are skills that are usually developed at later stages of infancy.

Correct Answer: A

Rationale: The correct answer is A. Duchenne muscular dystrophy is an X-linked recessive disorder that primarily affects males. It is crucial for the nurse to explain to the parents that this condition follows an inheritance pattern where the gene mutation responsible for the disorder is located on the X chromosome. Males have only one X chromosome, so if they inherit the mutated gene, they will develop the disease. Females, on the other hand, have two X chromosomes, providing a backup copy that can compensate for the mutation. Understanding this inheritance pattern is essential for family planning decisions, as the risk of passing on the disorder to future children can be explained based on this genetic inheritance.

Correct Answer: A

Rationale: Fussiness and low-grade fever are common side effects of immunizations in infants and usually resolve on their own. It is important for the nurse to educate the mother about these expected reactions to help ease her concerns. Immediate evaluation or giving aspirin to an infant for fever is not necessary or safe, as aspirin can be harmful to infants.

Correct Answer: C

Rationale: Allowing the child to play with a stethoscope can help distract them, making it easier to auscultate breath sounds. This approach can create a more cooperative and engaging environment for the child, facilitating a more accurate assessment of their breath sounds.

Correct Answer: D

Rationale: The startle reflex should diminish by this age; persistence requires evaluation.