HESI LPN
Fundamentals of Nursing HESI
1. When teaching adult cardiopulmonary resuscitation (CPR) to a group of newly licensed nurses, what should the charge nurse instruct as the initial response in CPR?
- A. Confirm unresponsiveness
- B. Check for a pulse
- C. Begin chest compressions
- D. Call for emergency help
Correct answer: A
Rationale: The correct initial response in CPR is to confirm unresponsiveness. This step is crucial to ensure that the person actually needs CPR before proceeding with further actions. Checking for unresponsiveness is essential to determine if the individual is in need of immediate assistance. Checking for a pulse or beginning chest compressions without confirming unresponsiveness could waste valuable time and potentially harm the individual. Calling for emergency help is important, but it should follow the confirmation of unresponsiveness to ensure timely activation of emergency services.
2. During auscultation of a client experiencing chest pain worsened by inspiration, a nurse hears a high-pitched scratching sound in both systole and diastole with the diaphragm of the stethoscope placed at the left sternal border. Which of the following heart sounds should the nurse document?
- A. Pericardial friction rub
- B. Murmur
- C. S1 and S2
- D. Bruit
Correct answer: A
Rationale: The correct answer is 'Pericardial friction rub.' A pericardial friction rub is a high-pitched, scratching sound heard in both systole and diastole, which is characteristic of pericardial inflammation. This sound is different from a murmur, which is a swooshing or blowing sound due to turbulent blood flow. S1 and S2 are normal heart sounds, and a bruit is a whooshing sound caused by turbulent blood flow in an artery, not related to pericardial inflammation.
3. A client has been admitted to the hospital with severe diarrhea. The nurse should monitor the client for which complication?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Hyperkalemia
- D. Hypercalcemia
Correct answer: A
Rationale: Severe diarrhea can lead to metabolic acidosis due to the loss of bicarbonate. When there is excessive loss of bicarbonate through diarrhea, the pH of the blood decreases, leading to metabolic acidosis. Metabolic alkalosis (Choice B) is not typically associated with severe diarrhea as it involves elevated pH and bicarbonate levels. Hyperkalemia (Choice C) is less likely with severe diarrhea as potassium is often lost along with fluids. Hypercalcemia (Choice D) is not a common complication of severe diarrhea; instead, hypocalcemia may occur due to malabsorption of calcium.
4. The pediatric clinic nurse examines a toddler with a tentative diagnosis of neuroblastoma. Findings observed by the nurse that are associated with this problem include which of these?
- A. Lymphedema and nerve palsy
- B. Hearing loss and ataxia
- C. Headaches and vomiting
- D. Abdominal mass and weakness
Correct answer: D
Rationale: Neuroblastoma, a common solid tumor in children, often presents with symptoms related to the mass effect it causes. Abdominal mass and weakness are classic signs of neuroblastoma due to the tumor originating in the adrenal glands near the kidneys and potentially compressing nearby structures. Lymphedema and nerve palsy (Choice A) are not typically associated with neuroblastoma. Hearing loss and ataxia (Choice B) are more common in conditions affecting the central nervous system rather than neuroblastoma. Headaches and vomiting (Choice C) are nonspecific symptoms and are less commonly linked to neuroblastoma compared to the characteristic abdominal findings.
5. What action should be taken to maintain the patency of a peripherally inserted central catheter (PICC)?
- A. Flush the catheter with heparin solution daily.
- B. Change the dressing at the insertion site daily.
- C. Use sterile technique when changing the dressing.
- D. Keep the insertion site dry at all times.
Correct answer: C
Rationale: The correct answer is to use sterile technique when changing the dressing. This practice is essential for preventing infections that can compromise the patency of the PICC line. While flushing the catheter with heparin solution helps prevent clot formation, it does not directly maintain patency. Changing the dressing daily is important for hygiene but does not have a direct impact on catheter patency. Keeping the insertion site dry is crucial to prevent infections but does not specifically address patency maintenance.
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