HESI LPN
HESI CAT Exam
1. A 2-year-old boy with short bowel syndrome has progressed to receiving enteral feedings only. Today his stools are occurring more frequently and have a more liquid consistency. His temperature is 102.2 °F, and he has vomited twice in the past four hours. Which assessment finding indicates that the child is becoming dehydrated?
- A. Occult blood in the stool
- B. Abdominal distention
- C. Elevated urine specific gravity
- D. Hyperactive bowel sounds
Correct answer: C
Rationale: Elevated urine specific gravity indicates concentrated urine, a sign of dehydration. In this scenario, the child is showing signs of dehydration with increased stool frequency, liquid consistency, fever, and vomiting. Occult blood in the stool may indicate gastrointestinal bleeding but is not a specific sign of dehydration. Abdominal distention can be seen in various conditions and is not a specific indicator of dehydration. Hyperactive bowel sounds can be present in various gastrointestinal conditions but are not directly related to dehydration.
2. A 70-year-old client is admitted to the hospital after 24 hours of acute diarrhea. To determine fluid status, which initial data is most important for the nurse to obtain?
- A. Usual and current weight
- B. Color and amount of urine
- C. Number and frequency of stools
- D. Intake and output 24 hours prior to admission
Correct answer: A
Rationale: The correct answer is A: Usual and current weight. Weight changes are the most direct indicator of fluid status in a patient with acute diarrhea. Monitoring weight loss or gain can provide crucial information about fluid balance. Option B, color and amount of urine, though important for assessing renal function, is not as direct an indicator of fluid status as weight. Option C, number and frequency of stools, is relevant for assessing the severity of diarrhea but does not provide direct information on fluid status. Option D, intake and output 24 hours prior to admission, does not reflect the current fluid status and may not be accurate in a rapidly changing condition like acute diarrhea.
3. The nurse is caring for a client with a tracheostomy. Which action should the nurse perform when suctioning the tracheostomy tube?
- A. Increase wall suction while removing the suction catheter
- B. Instill 10 ml of sterile saline into the tracheostomy tube before applying continuous suction
- C. Suction the client’s oropharynx after tracheal suctioning
- D. Insert the suction catheter into the trachea, and apply intermittent suction with removal of the catheter
Correct answer: D
Rationale: When suctioning a tracheostomy tube, it is essential to insert the suction catheter into the trachea and apply intermittent suction with removal of the catheter. This technique helps prevent damage to the trachea and reduces discomfort for the client. Choice A is incorrect because increasing wall suction with the removal of the suction catheter can cause trauma to the tracheal mucosa. Choice B is incorrect because instilling saline into the tracheostomy tube before suctioning is not recommended as it can lead to complications. Choice C is incorrect as oropharyngeal suctioning should be done before tracheal suctioning to prevent the risk of aspiration.
4. An adult male with a 6 cm thoracic aneurysm is being prepared for surgery. The nurse reports to the healthcare provider that the client’s blood pressure is 220/112 mmHg, so an antihypertensive agent is added to the client’s IV infusion. Which finding warrants immediate intervention by the nurse?
- A. Reports a tearing, sharp pain between his shoulder blades
- B. Blood pressure reading of 200/100 mmHg 15 minutes later
- C. Rose-colored urine draining from the urinary catheter
- D. Sinus tachycardia with frequent premature ventricular beats (PVC)
Correct answer: A
Rationale: A tearing, sharp pain between the shoulder blades may indicate aortic dissection, a serious complication requiring immediate intervention. This symptom is highly concerning in a patient with a thoracic aneurysm. Choice B is not as urgent as the pain symptom described in choice A. Choice C could indicate hematuria but is not as critical as the potential aortic dissection in choice A. Choice D, sinus tachycardia with PVCs, may be related to the patient's condition but is not as indicative of an immediate life-threatening situation as the tearing, sharp pain indicative of aortic dissection.
5. When admitting a client diagnosed with active tuberculosis to isolation, which infection control measures should the nurse implement?
- A. Negative pressure environment
- B. Contact precautions
- C. Droplet precautions
- D. Protective environment
Correct answer: A
Rationale: The correct answer is A: Negative pressure environment. Tuberculosis is transmitted through airborne particles, so a negative pressure room is essential to prevent the spread of the bacteria. Choice B, contact precautions, are used for infections spread by direct or indirect contact, not for tuberculosis. Choice C, droplet precautions, are for infections transmitted through respiratory droplets, not airborne particles like tuberculosis. Choice D, protective environment, is used for protecting immunocompromised patients from outside pathogens, not for preventing the spread of tuberculosis.
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