HESI RN
HESI Pediatrics Practice Exam
1. The healthcare provider is assessing an infant with pyloric stenosis. Which pathophysiological mechanism is the most likely consequence of this infant's clinical picture?
- A. Metabolic alkalosis.
- B. Respiratory acidosis.
- C. Metabolic acidosis.
- D. Respiratory alkalosis.
Correct answer: A
Rationale: Pyloric stenosis leads to obstruction at the outlet of the stomach, causing frequent vomiting and loss of stomach acids. This results in a loss of hydrochloric acid and hydrogen ions, leading to metabolic alkalosis due to an increase in serum bicarbonate levels. Therefore, the correct answer is metabolic alkalosis. Choice B, respiratory acidosis, is incorrect as it is not typically associated with pyloric stenosis. Choice C, metabolic acidosis, is incorrect because the loss of stomach acids in pyloric stenosis leads to metabolic alkalosis, not acidosis. Choice D, respiratory alkalosis, is also incorrect as it is not the usual consequence of pyloric stenosis.
2. After teaching a client with renal cancer who is prescribed temsirolimus (Torisel), the nurse assesses the client’s understanding. Which statement made by the client indicates a correct understanding of the teaching?
- A. I will take this medication with food and plenty of water.
- B. I shall keep my appointment at the infusion center each week.
- C. I’ll limit my intake of green leafy vegetables while on this medication.
- D. I must not take this medication if I have an infection or am feeling ill.
Correct answer: B
Rationale: The correct answer is B. Temsirolimus, also known as Torisel, is administered as a weekly intravenous infusion. This medication blocks protein needed for cell division, inhibiting cell cycle progression. It is not taken orally, so there is no need to take it with food or water. Keeping the weekly infusion center appointment is crucial for the client to receive the prescribed treatment effectively. Choice A is incorrect as temsirolimus is not taken with food or water. Choice C is incorrect because there is no need to limit the intake of green leafy vegetables while on this medication. Choice D is incorrect as having an infection or feeling ill does not prohibit the use of temsirolimus.
3. Which of the following correctly identifies the two types of cells?
- A. Mitosis and meiosis
- B. Mitochondrion and chloroplast
- C. Genotype and phenotype
- D. Prokaryotic and eukaryotic
Correct answer: D
Rationale: The correct answer is D: Prokaryotic and eukaryotic. Cells are classified into two major types: prokaryotic, which lack a nucleus, and eukaryotic, which have a defined nucleus and other membrane-bound organelles. Choice A, mitosis and meiosis, refers to cell division processes. Choice B, mitochondrion and chloroplast, are cell organelles involved in energy production and photosynthesis, respectively. Choice C, genotype and phenotype, relate to genetic characteristics and physical traits, not cell types.
4. A 9-year-old child is brought to the clinic with a fever, rash, and swollen joints. The nurse notes that the child had a sore throat two weeks ago that was not treated. What condition should the nurse suspect?
- A. Scarlet fever
- B. Rheumatic fever
- C. Kawasaki disease
- D. Juvenile rheumatoid arthritis
Correct answer: B
Rationale: In this scenario, the child's symptoms of fever, rash, and swollen joints following an untreated sore throat two weeks ago are indicative of rheumatic fever. Rheumatic fever can develop as a complication of untreated streptococcal infections, leading to systemic inflammation and affecting various organs, including the joints. This condition manifests with symptoms such as fever, rash, and swollen joints, aligning with the child's presentation in this case. Scarlet fever typically presents with a sandpapery rash and strawberry tongue but does not involve joint inflammation. Kawasaki disease presents with fever, rash, and mucous membrane changes but does not typically involve joint swelling. Juvenile rheumatoid arthritis can cause joint swelling but is not directly linked to a recent untreated sore throat.
5. After two miscarriages, a client is instructed to increase her daily intake of foods that include folic acid. The client does not like green leafy vegetables and states she is allergic to soy. Which food should the nurse suggest that the client eat to obtain folic acid?
- A. Strawberries.
- B. Yogurt.
- C. Collard greens.
- D. Whole milk.
Correct answer: C
Rationale: Collard greens are a good source of folic acid, which is important for preventing neural tube defects, especially in clients with a history of miscarriages. Since the client does not like green leafy vegetables, collard greens could be suggested as an alternative source of folic acid. Yogurt and whole milk do not contain significant amounts of folic acid, and while strawberries are a healthy choice, they are not a high source of folic acid compared to collard greens.