HESI RN
HESI Pediatric Practice Exam
1. A 4-year-old child is brought to the clinic with complaints of ear pain and fever. The practical nurse suspects otitis media. Which symptom supports this suspicion?
- A. Clear nasal discharge.
- B. Dry, hacking cough.
- C. Tugging at the ear.
- D. Sore throat.
Correct answer: C
Rationale: Tugging at the ear is a common symptom in children with otitis media. It often indicates discomfort or pain in the ear, suggesting inflammation or infection in the middle ear. This behavior is frequently observed in young children who are unable to express their discomfort verbally, making it a significant clinical indicator for otitis media in this age group. Clear nasal discharge (Choice A) is more indicative of a cold or allergies, while a dry, hacking cough (Choice B) is not typically associated with otitis media. Although a sore throat (Choice D) can sometimes accompany ear infections, tugging at the ear is a more specific and reliable symptom in this case.
2. A client in acute renal failure has a serum potassium of 7.5 mEq/L. Based on this finding, the nurse should anticipate implementing which action?
- A. Administer an IV of normal saline rapidly and NPH insulin subcutaneously.
- B. Administer a retention enema of Kayexalate.
- C. Add 40 mEq of KCL (potassium chloride) to the present IV solution.
- D. Administer a lidocaine bolus IV push.
Correct answer: B
Rationale: In acute renal failure with a high serum potassium level, the priority intervention is to lower potassium levels to prevent complications like cardiac arrhythmias. Administering a retention enema of Kayexalate is the correct action as it helps lower high potassium levels by exchanging sodium for potassium in the intestines. Options A, C, and D are incorrect. Administering normal saline rapidly and NPH insulin or adding more potassium to the IV solution can further increase potassium levels, worsening the condition. Lidocaine is not indicated for treating hyperkalemia.
3. After a client has an enteral feeding tube inserted, the most accurate method for verification of placement is
- A. Abdominal x-ray
- B. Auscultation
- C. Flushing tube with saline
- D. Aspiration for gastric contents
Correct answer: D
Rationale: After the insertion of an enteral feeding tube, the most accurate method for verifying its placement is by aspirating gastric contents. This method ensures that the tube is correctly positioned in the stomach. Abdominal x-ray can provide additional confirmation but is not as immediate or practical. Auscultation and flushing the tube with saline are not as reliable as aspirating gastric contents for verifying proper placement of an enteral feeding tube.
4. A client with chronic kidney disease (CKD) is admitted with hyperkalemia. Which intervention should the nurse implement first?
- A. Administer intravenous calcium gluconate.
- B. Administer intravenous insulin and glucose.
- C. Administer intravenous sodium bicarbonate.
- D. Administer a loop diuretic as prescribed.
Correct answer: B
Rationale: The correct answer is to administer intravenous insulin and glucose first. This intervention helps drive potassium back into the cells, lowering serum levels effectively. Administering intravenous calcium gluconate (choice A) is used to stabilize cardiac membranes in severe hyperkalemia but does not address the underlying cause. Administering intravenous sodium bicarbonate (choice C) is used in metabolic acidosis, not hyperkalemia. Administering a loop diuretic (choice D) can help eliminate potassium but is not the first-line treatment for hyperkalemia in CKD.
5. What is the most important assessment for the healthcare provider to conduct before the administration of epidural anesthesia to a client at 40 weeks' gestation?
- A. Maternal blood pressure.
- B. Level of pain sensation.
- C. Station of presenting part.
- D. Variability of fetal heart rate.
Correct answer: A
Rationale: Assessing maternal blood pressure is crucial before administering epidural anesthesia because it can cause hypotension, affecting both the mother and the fetus. Hypotension can lead to decreased placental perfusion, potentially compromising the fetal oxygen supply. Monitoring and maintaining maternal blood pressure within a safe range are essential to ensure the well-being of both the mother and the fetus during the administration of epidural anesthesia. The other options, such as assessing the level of pain sensation, station of presenting part, and variability of fetal heart rate, are important in obstetric care but are not as critical as monitoring maternal blood pressure to prevent complications related to epidural anesthesia administration.