HESI LPN
HESI CAT Exam Test Bank
1. While flushing the proximal port of a triple lumen central venous catheter with heparin solution, the nurse meets resistance. What action should the nurse take?
- A. Remove the cap and apply direct gentle pressure with the syringe
- B. Contact the healthcare provider regarding the need for a chest x-ray
- C. Cover the cap with tape and label the port as being obstructed
- D. Remove the catheter while applying gentle pressure at the insertion site
Correct answer: B
Rationale: When encountering resistance while flushing a central venous catheter, it is crucial to contact the healthcare provider regarding the need for a chest x-ray. This resistance may indicate a blockage within the catheter, a kink, or other issues that could compromise the integrity of the catheter or pose a risk to the patient. It is essential to assess the situation through imaging to determine the appropriate course of action. Option A is incorrect because applying direct pressure could cause damage to the catheter or dislodge any potential blockage. Option C is incorrect as labeling the port as obstructed without further assessment may delay necessary interventions. Option D is incorrect as removing the catheter without proper evaluation can lead to complications and should only be done under the guidance of a healthcare provider.
2. Which action should the school nurse take first when conducting a screening for scoliosis?
- A. Compare dorsal trunk measurements
- B. Have the individual extend arms over the head for visualization
- C. Inspect for symmetrical shoulder height
- D. Observe weight-bearing on each leg
Correct answer: C
Rationale: Inspecting for symmetrical shoulder height is a crucial initial step in screening for scoliosis. Asymmetry in shoulder height can indicate the presence of spinal curvature, which is a key indicator of scoliosis. This assessment is prioritized as it provides a visual clue to potential spinal abnormalities. Choices A, B, and D are not the first steps in scoliosis screening. Choice A involves a more detailed measurement that is not the primary visual indicator for scoliosis; choice B is not a primary indicator of scoliosis but can be used for further examination, and choice D is not directly related to identifying spinal curvature.
3. The nurse is caring for a newborn who arrives in the nursery following a precipitous birth on the way to the hospital. A drug screen of the mother reveals the presence of cocaine metabolites. The infant has a heart rate of 175 beats/minute, cries continuously, is irritable, and is hyperreactive to stimuli. Which intervention is most important for the nurse to include in this infant’s plan of care?
- A. Initiate infant sepsis protocol
- B. Implement seizure precautions
- C. Refer to protective child services
- D. Formula feed every 3 hours
Correct answer: B
Rationale: The infant's symptoms, such as a high heart rate, continuous crying, irritability, and hyperreactivity, suggest possible withdrawal effects due to maternal cocaine use. These symptoms can lead to seizures. Therefore, the priority intervention is to implement seizure precautions to ensure the infant's safety. Initiating the infant sepsis protocol is not indicated based on the symptoms presented. Referring to protective child services is important but not the immediate priority. Formula feeding every 3 hours is a routine care measure but does not address the urgent need to prevent potential seizures.
4. 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.
5. An infant is receiving penicillin G procaine 220,000 units IM. The drug is supplied as 600,000 units/ml. How many ml should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth)
- A. 0.4
- B.
- C.
- D.
Correct answer: A
Rationale: To calculate the volume to administer, use the formula: Desired dose (220,000 units) / Dose on hand (600,000 units) x Volume of the available dose (1 ml). This results in 0.4 ml to be administered. Choice A is correct. Choice B, C, and D are incorrect as they are not provided.
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