HESI RN
HESI RN CAT Exam Quizlet
1. A client with cirrhosis is taking lactulose (Cephulac). Which finding indicates that the lactulose is having the desired effect?
- A. Two to three soft bowel movements per day
- B. Increased serum ammonia levels
- C. Decreased white blood cell count
- D. Soft, formed stool twice a day
Correct answer: A
Rationale: The correct answer is A: 'Two to three soft bowel movements per day.' Lactulose is prescribed to produce soft, regular bowel movements to reduce ammonia levels in clients with cirrhosis. This helps in preventing hepatic encephalopathy. Option B is incorrect because increased serum ammonia levels would indicate that lactulose is not effectively reducing ammonia levels. Option C is incorrect because lactulose does not directly affect white blood cell counts. Option D is incorrect because soft, formed stools twice a day may not be frequent enough to effectively reduce ammonia levels in clients with cirrhosis.
2. A client with a history of heart failure is admitted to the hospital with worsening dyspnea. The nurse notes that the client has a productive cough with pink, frothy sputum. What action should the nurse take first?
- A. Administer oxygen
- B. Perform chest physiotherapy
- C. Elevate the head of the bed
- D. Obtain a sputum specimen
Correct answer: A
Rationale: In a client with heart failure presenting with worsening dyspnea and pink, frothy sputum (indicating pulmonary edema), the priority action for the nurse is to administer oxygen. Oxygen therapy helps improve oxygenation and alleviate dyspnea by increasing the oxygen supply to the lungs. Performing chest physiotherapy, elevating the head of the bed, or obtaining a sputum specimen are not the initial actions indicated in this situation and may delay addressing the client's immediate need for improved oxygenation.
3. In the newborn nursery, the nurse admits a baby from labor and delivery who is suspected of having a congenital heart disease. Which finding helps to confirm this diagnosis?
- A. Pink lips and tongue with cyanotic hands and feet
- B. Respiration rate of 40 and heart rate of 144
- C. Centralized cyanosis and tachycardia when crying
- D. Desquamation from areas of cracked, parchment-like skin
Correct answer: C
Rationale: Centralized cyanosis and tachycardia are classic signs of congenital heart disease. Choice A is incorrect because cyanosis in the hands and feet is not specific to congenital heart disease. Choice B is incorrect as the vital signs provided are not specific indicators of congenital heart disease. Choice D is unrelated to the typical signs of congenital heart disease.
4. The nurse is preparing to administer an IM injection to a 6-month-old child. Which injection site is best for the nurse to use?
- A. Vastus lateralis
- B. Deltoid
- C. Ventrogluteal
- D. Dorsogluteal
Correct answer: A
Rationale: The vastus lateralis is the preferred site for IM injections in infants due to muscle development. In infants under 1 year old, the vastus lateralis muscle in the thigh is often used for IM injections due to its size and development. The deltoid muscle is typically used for adults, and the ventrogluteal and dorsogluteal sites are more commonly used for older children and adults. Therefore, the best choice for administering an IM injection to a 6-month-old child is the vastus lateralis.
5. The nurse is performing a physical assessment of a client with a history of smoking and notes a barrel chest. Which action is most important for the nurse to take next?
- A. Assess the client's oxygen saturation level
- B. Teach the client pursed-lip breathing techniques
- C. Determine the client's history of lung disease
- D. Obtain an arterial blood gas sample
Correct answer: A
Rationale: Corrected Rationale: Assessing the client's oxygen saturation level is crucial when a nurse identifies a barrel chest. A barrel chest is often associated with chronic obstructive pulmonary disease (COPD), which can lead to impaired gas exchange and decreased oxygen saturation. Monitoring the oxygen saturation level will provide immediate information on the client's respiratory status. Teaching pursed-lip breathing techniques, determining lung disease history, and obtaining arterial blood gas samples are important interventions but assessing oxygen saturation takes precedence in this scenario due to its direct impact on the client's respiratory function.
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