NCLEX NCLEX-PN
NCLEX PN Exam Cram
1. An infection in a central venous access device is not eliminated by giving antibiotics through the catheter. How might bacterial glycocalyx contribute to this?
- A. It protects the bacteria from antibiotic and immunologic destruction.
- B. Glycocalyx neutralizes the antibiotic, rendering it ineffective.
- C. It competes with the antibiotic for binding sites on the microbe.
- D. Glycocalyx provides nutrients for microbial growth.
Correct answer: It protects the bacteria from antibiotic and immunologic destruction.
Rationale: Bacterial glycocalyx is a viscous polysaccharide or polypeptide slime that covers microbes. It plays a significant role in protecting bacteria by enhancing adherence to surfaces, resisting phagocytic engulfment by white blood cells, and preventing antibiotics from contacting the microbe. Choice A is correct because glycocalyx shields the bacteria from both antibiotics and the immune system, allowing the infection to persist. Choices B, C, and D are incorrect because glycocalyx does not neutralize antibiotics, compete for binding sites with antibiotics, or provide nutrients for microbial growth.
2. Which medication might the healthcare provider prescribe if the client expresses discomfort with being in the enclosed space of a CT scanner?
- A. Valium (diazepam)
- B. Clozaril (clozapine)
- C. Catapres (clonidine)
- D. Lasix (furosemide)
Correct answer: Valium (diazepam)
Rationale: Valium (diazepam) is a sedative that might be prescribed to help a client who feels uncomfortable in the confined space of a CT scanner. Diazepam can help reduce anxiety and promote relaxation, making the scanning process more tolerable. Clozaril (clozapine), Catapres (clonidine), and Lasix (furosemide) are not sedatives and wouldn't be appropriate for alleviating discomfort related to being in an enclosed space. Clozaril is an antipsychotic used to treat schizophrenia, Catapres is a blood pressure medication, and Lasix is a diuretic used to treat fluid retention, so they are not indicated for this situation.
3. Which of the following statements by a client indicates adequate preparation for magnetic resonance imaging?
- A. “I should wear earplugs during the test.”
- B. “I should remove my metal jewelry before the test.”
- C. “I should inform the healthcare provider about my pacemaker.”
- D. “I should inform the healthcare provider about my artificial hip.”
Correct answer: “I should wear earplugs during the test.”
Rationale: The correct statement is, '“I should wear earplugs during the test,”' as MRI scanners produce loud noises requiring ear protection. Metal objects, including jewelry, are not allowed inside the MRI room due to safety concerns related to the magnetic field. Choices B, C, and D are incorrect. Choice B is wrong because metal objects, including jewelry, are not permitted in the MRI room. Choices C and D are incorrect as having a pacemaker or an artificial hip raises concerns due to the magnetic field in MRI, requiring special precautions or considerations. It is crucial for individuals with such implants to inform their healthcare provider to assess the risks and determine the appropriate course of action.
4. An 80-year-old aphasic CVA client had abdominal surgery 2 days ago. Which of the following puts this client at the highest risk for inadequate pain management?
- A. Inability to turn, cough, and breathe deeply
- B. Inability to communicate pain
- C. Inability to ambulate freely
- D. Inability to use a bedside commode
Correct answer: Inability to communicate pain
Rationale: The correct answer is B: Inability to communicate pain. In this scenario, the client's aphasia prevents them from verbally expressing their pain, which can lead to inadequate pain management if the healthcare team is not vigilant. The nurse must use alternative methods to assess and address the client's pain. Choices A, C, and D, although important considerations in postoperative care, do not directly relate to the client's ability to communicate pain, which is crucial for effective pain management in this case.
5. While a client is on total parenteral nutrition, which of the following values should the nurse monitor closely?
- A. calcium
- B. magnesium
- C. glucose
- D. cholesterol
Correct answer: C
Rationale: Glucose should be monitored closely when a client is on total parenteral nutrition due to the high glucose concentration in the solutions. Monitoring glucose levels is crucial to prevent complications such as hyperglycemia or hypoglycemia. Calcium and magnesium are usually monitored to assess electrolyte imbalances, while cholesterol levels are not directly impacted by total parenteral nutrition. Therefore, choices A, B, and D are not the primary values that need close monitoring during total parenteral nutrition.
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