NCLEX-PN
NCLEX PN Exam Cram
1. If a client is suffering from thyroid storm, the PN can expect to find on assessment:
- A. tachycardia and hyperthermia.
- B. bradycardia and hypothermia.
- C. a large goiter.
- D. a calm, quiet client
Correct answer: A
Rationale: In thyroid storm, there is an excess of thyroxine, leading to symptoms such as tachycardia (rapid heart rate) and hyperthermia (increased body temperature). Atrial fibrillation and palpitations are also commonly observed. Choices B and C are more indicative of hypothyroidism, where the thyroid is underactive, leading to bradycardia (slow heart rate), hypothermia (decreased body temperature), and the development of a large goiter. Choice D, a calm, quiet client, is unlikely in a thyroid storm where the individual would typically present with symptoms of agitation and restlessness due to the hypermetabolic state.
2. 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: A
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.
3. Which task would be appropriate for the LPN to perform?
- A. Changing a colostomy bag.
- B. Hanging a new bag of TPN.
- C. Drawing a peak antibiotic blood level from a central line.
- D. Administering IV pain medication to a two-day post-op client.
Correct answer: A
Rationale: The correct answer is changing a colostomy bag. This task falls within the LPN's scope of practice. LPNs are trained to provide basic nursing care, including assisting with activities of daily living and certain medical procedures like changing ostomy bags. Hanging a new bag of TPN and drawing a peak antibiotic blood level from a central line are tasks that require a higher level of training and are typically performed by RNs due to their complexity and potential risks. Administering IV pain medication to a two-day post-op client is usually the responsibility of an RN as it involves close monitoring, assessment of the client's condition, and the administration of potent medications that require a higher level of clinical judgment and expertise.
4. A healthcare professional is reviewing a patient's ECG report. The patient exhibits a flat T wave, depressed ST segment, and short QT interval. Which of the following medications can cause all of the above effects?
- A. Morphine
- B. Atropine
- C. Procardia
- D. Digitalis
Correct answer: D
Rationale: The correct answer is Digitalis. Digitalis is known to cause a flat T wave, depressed ST segment, and a short QT interval on an ECG report. These ECG changes are characteristic of digitalis toxicity. Morphine is not typically associated with these ECG changes. Atropine is more commonly linked to increasing heart rate rather than causing these specific ECG abnormalities. Procardia is a calcium channel blocker that does not typically produce the described ECG findings. Therefore, Digitalis is the most likely medication causing these effects in the patient.
5. A person who had a left CVA and right lower extremity hemiparesis is being instructed by a nurse to use a quad cane. Which of the following is the most appropriate gait sequence?
- A. Place the cane in the patient's left upper extremity, encourage cane, then right lower extremity, then left upper extremity gait sequence.
- B. Place the cane in the patient's left upper extremity, encourage cane, then left lower extremity, then right upper extremity gait sequence.
- C. Place the cane in the patient's right upper extremity, encourage cane, then right lower extremity, then left upper extremity gait sequence.
- D. Place the cane in the patient's right upper extremity, encourage cane, then left lower extremity, then right upper extremity gait sequence.
Correct answer: A
Rationale: The correct gait sequence for a person with left CVA and right lower extremity hemiparesis using a quad cane is to place the cane in the patient's strong upper extremity, which is the left upper extremity in this case. The correct sequence should be right lower extremity followed by left upper extremity, as this pattern mimics a normal gait pattern. Therefore, Choice A is the correct answer. Choices B, C, and D are incorrect because they do not follow the proper gait sequence for this specific patient's condition. The cane should be placed in the strong upper extremity, and the affected lower extremity should move first to provide stability and support, which is essential in this situation.
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