HESI RN
HESI Pediatrics Practice Exam
1. A 3-year-old child is admitted to the hospital with a diagnosis of pneumonia. The nurse notes that the child has a fever and is breathing rapidly. What is the nurse’s priority action?
- A. Administer antipyretic medication
- B. Obtain a chest X-ray
- C. Start the child on oxygen therapy
- D. Notify the healthcare provider
Correct answer: C
Rationale: In a child with pneumonia who is breathing rapidly, the priority action for the nurse is to start the child on oxygen therapy. This intervention is essential to ensure adequate oxygenation, which is crucial in managing respiratory distress and preventing complications associated with hypoxia. Administering antipyretic medication (Choice A) may help reduce the fever but does not address the immediate need for oxygen therapy. Obtaining a chest X-ray (Choice B) is important for diagnosis but providing oxygen is more urgent. Notifying the healthcare provider (Choice D) can be done after initiating oxygen therapy to update on the patient's condition.
2. An antibiotic IM injection for a 2-year-old child is ordered. The total volume of the injection equals 2.0 ml. The correct action is to
- A. Administer the medication in 2 separate injections
- B. Give the medication in the dorsal gluteal site
- C. Call to get a smaller volume ordered
- D. Check with the pharmacy for a liquid form of the medication
Correct answer: A
Rationale: Injections over 1 mL should be split into two separate injections for young children. This helps in preventing discomfort, ensuring proper absorption, and reducing the risk of tissue damage. Giving the medication in one injection of 2.0 ml might be too much for a 2-year-old child. Choices B and D are incorrect because the dorsal gluteal site is not recommended for children due to potential injury, and changing the form of medication might not be necessary if the volume can be adjusted. Choice C is unnecessary as splitting the dose into two injections is the appropriate action.
3. A patient is admitted to the emergency department with severe fatigue and confusion. Laboratory studies are done. Which laboratory value will require the most immediate action by the nurse?
- A. Arterial blood pH is 7.32.
- B. Serum calcium is 18 mg/dL.
- C. Serum potassium is 5.1 mEq/L
- D. Arterial oxygen saturation is 91%.
Correct answer: B
Rationale: The correct answer is B. A serum calcium level of 18 mg/dL is significantly elevated, posing a high risk for cardiac dysrhythmias. Immediate action is required to initiate cardiac monitoring and notify the healthcare provider. While the abnormalities in arterial blood pH, serum potassium, and arterial oxygen saturation also need attention, they are not as immediately life-threatening as the critically high serum calcium level. Therefore, addressing the serum calcium level takes precedence in this scenario.
4. A client with severe dehydration is admitted to the hospital. Which assessment finding indicates that the client's condition is improving?
- A. The client reports feeling less thirsty
- B. Urine output increases to 40 mL/hour
- C. Heart rate decreases from 120 to 110 beats per minute
- D. Skin turgor returns to normal
Correct answer: B
Rationale: An increase in urine output is a reliable indicator that the client's hydration status is improving. This reflects adequate fluid replacement and improved kidney function. Choice A is subjective and may not always indicate improved hydration. Choice C, while a positive sign, may be influenced by other factors such as medications or pain. Choice D, skin turgor returning to normal, is a delayed indicator of hydration status and may take time to improve even after hydration is initiated.
5. A client with cirrhosis is admitted with hepatic encephalopathy. Which laboratory value is most concerning?
- A. Serum ammonia level of 100 mcg/dl
- B. Bilirubin level of 3.0 mg/dl
- C. Prothrombin time of 18 seconds
- D. Serum sodium level of 135 mEq/L
Correct answer: A
Rationale: A serum ammonia level of 100 mcg/dl is most concerning in a client with hepatic encephalopathy. Elevated serum ammonia levels indicate significant liver dysfunction and an increased risk of worsening encephalopathy. Bilirubin level and prothrombin time are important in assessing liver function, but in the context of hepatic encephalopathy, elevated ammonia levels take precedence as they directly contribute to neurological symptoms. Serum sodium level, though important, is not the primary concern when managing hepatic encephalopathy.