HESI Pediatrics Quizlet

Correct Answer: B

Rationale: Monitoring the intravenous drop rate is crucial when administering IV fluids to ensure that the correct amount of fluids is delivered to the dehydrated infant. Choice A assumes the initial rate is correct without ongoing assessment. Choice C, while important, does not address the immediate need for monitoring the infusion rate. Choice D, maintaining the fluid at body temperature, is essential for comfort but is not as critical as ensuring the correct fluid delivery rate. By monitoring the intravenous drop rate, healthcare providers can adjust the flow as needed to prevent overhydration or underhydration, helping to manage the infant's fluid balance effectively.

Correct Answer: A

Rationale: The correct answer is A. Cystic fibrosis is a genetic disorder that primarily affects the respiratory and digestive systems. It results in the production of thick, sticky mucus that can clog the lungs and obstruct the pancreas. This explanation is crucial for parents to understand the impact of the condition on their child's health. Choice B is incorrect because cystic fibrosis is not an autoimmune disorder. Choice C is partially correct in that cystic fibrosis is a genetic disorder, but it requires a comprehensive management approach beyond just medication. Choice D is incorrect as cystic fibrosis is not caused by prenatal exposure to toxins but rather by inheriting specific genetic mutations.

Correct Answer: B

Rationale: By 11 months of age, the recommended vaccines for infants include diphtheria, pertussis, tetanus, and polio. These vaccines are part of the routine immunization schedule to protect infants from serious infectious diseases. Choice A is incorrect because measles is not typically administered at this age. Choice C is incorrect because rubella and tuberculosis are not part of routine infant immunizations. Choice D is incorrect because measles, mumps, and rubella are usually given as a combination vaccine later in childhood, not at 11 months of age.

Correct Answer: D

Rationale: Left-to-right shunting in a cardiac malformation results in increased blood flow to the lungs. This increased blood flow can lead to pulmonary hypertension and heart failure if left untreated. Elevated hematocrit (Choice A) is not a characteristic directly associated with left-to-right shunting. Severe growth retardation (Choice B) is not a typical manifestation of this type of congenital disorder. Clubbing of the fingers and toes (Choice C) is more commonly seen in conditions like chronic respiratory or cardiac diseases, not specifically with left-to-right shunting and associated cardiac malformations.

Correct Answer: A

Rationale: Right lower quadrant pain is a characteristic clinical manifestation of appendicitis. The appendix is typically located in the right lower quadrant of the abdomen, so pain in this area is a common symptom. Left lower quadrant pain (Choice B) is less likely in cases of appendicitis. Rebound tenderness (Choice C) is a sign of peritonitis, not specific to appendicitis. Epigastric pain (Choice D) is more indicative of upper gastrointestinal issues rather than appendicitis.