HESI LPN
CAT Exam Practice
1. To differentiate adventitious lung sounds associated with heart failure from those associated with bacterial pneumonia, what information should the nurse review?
- A. Sputum culture findings
- B. Oxygen saturation level
- C. Amount of coughing
- D. Respiratory rate
Correct answer: A
Rationale: The correct answer is A: Sputum culture findings. Reviewing sputum culture findings can provide valuable information to differentiate between bacterial pneumonia and heart failure, as the type of bacteria present in the sputum can help identify the specific infection. Oxygen saturation level (Choice B) is important for assessing oxygenation status but does not directly help in distinguishing between the two conditions based on lung sounds. The amount of coughing (Choice C) and respiratory rate (Choice D) may offer some clinical insights but are not as specific or diagnostic as sputum culture findings when differentiating between heart failure and bacterial pneumonia.
2. To prevent aspiration in a client on mechanical ventilation receiving continuous enteral feedings through a nasogastric tube, which intervention is most important for the nurse to implement?
- A. Verify the feeding tube position with a daily chest x-ray
- B. Maintain head of bed elevated while enteral feeding is infusing
- C. Check feeding tube placement with air bolus prior to use
- D. Aspirate stomach contents every 4 hours to assess residuals
Correct answer: B
Rationale: The most important intervention to prevent aspiration in a client receiving continuous enteral feedings through a nasogastric tube while on mechanical ventilation is to maintain the head of the bed elevated while the feeding is infusing. This position helps reduce the risk of regurgitation and aspiration. Options A, C, and D are not as crucial as maintaining proper positioning to prevent aspiration. Verifying tube position with a daily chest x-ray is important but not the most crucial. Checking tube placement with an air bolus and aspirating stomach contents are important procedures but do not directly address the prevention of aspiration during enteral feedings.
3. The unlicensed assistive personnel (UAP) has applied a gown and gloves and secured the tops of the gloves over the gown sleeves. What action should the nurse take?
- A. Confirm that the gown is tied securely at the neck and waist
- B. Remind the UAP to wash hands frequently while in the room
- C. Assist the UAP with application of the face mask or face shield
- D. Help the UAP reposition the gown sleeve over the gloves edges
Correct answer: D
Rationale: Proper application of personal protective equipment (PPE) is crucial to maintain infection control. In this scenario, the nurse should help the UAP reposition the gown sleeve over the gloves' edges. This action ensures that the gown properly covers the gloves, reducing the risk of contamination. Choices A, B, and C are incorrect because the primary concern is to address the improper application of PPE by repositioning the gown sleeves over the gloves, not checking other aspects of PPE or reminding about hand hygiene.
4. A 10-month-old girl is admitted with a diagnosis of possible cystic fibrosis. What question should the nurse ask the parent to assist in the diagnosis of cystic fibrosis (CF)?
- A. When you kiss her, does she taste salty?
- B. Do you notice if her urine has a musty odor?
- C. Has she been drinking cow's milk in her daily diet?
- D. How often does she have a normal bowel movement?
Correct answer: A
Rationale: The correct answer is A. Salty skin is a common sign of cystic fibrosis due to high levels of sodium in sweat. Asking about the taste of the child's skin provides valuable information related to the diagnosis of CF. Choices B, C, and D are not helpful in diagnosing cystic fibrosis. A musty odor in urine is not a typical symptom of CF. Drinking cow's milk or bowel movement frequency are not specific to CF diagnosis.
5. When assessing a mildly obese 35-year-old female client, the nurse is unable to locate the gallbladder when palpating below the liver margin at the lateral border of the rectus abdominal muscle. What is the most likely explanation for the failure to locate the gallbladder by palpation?
- A. The client is too obese.
- B. Palpating in the wrong location.
- C. The gallbladder is normal.
- D. Deeper palpation technique is needed.
Correct answer: A
Rationale: The correct answer is A. Obesity can make it difficult to palpate the gallbladder due to increased abdominal tissue, making it challenging to locate specific structures. Choice B is incorrect because the nurse is palpating in the correct location below the liver margin at the lateral border of the rectus abdominal muscle, where the gallbladder is typically located. Choice C is incorrect as the inability to palpate the gallbladder does not necessarily indicate abnormality; it may be due to anatomical variations or technical challenges. Choice D is incorrect as the issue lies more with the difficulty posed by excess adipose tissue rather than the need for deeper palpation techniques.
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