Nokea
Nociceptors differ from other nerve receptors in the body in what way?
- A. They adapt very little to continual pain response.
- B. They inhibit the infiltration of neutrophils and eosinophils.
- C. They play no role in the inflammatory response.
- D. They transmit only the thermal stimuli.
Correct Answer: A
Rationale: The correct answer is A because nociceptors are specialized nerve receptors that do not adapt much to continual pain response. This lack of adaptation allows nociceptors to continuously signal the presence of tissue-damaging stimuli, which is crucial for the perception of pain. Choices B, C, and D are incorrect because nociceptors do not inhibit the infiltration of neutrophils and eosinophils (B), they do play a role in the inflammatory response (C), and they transmit various types of stimuli including thermal, mechanical, and chemical, not just thermal stimuli (D).
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Continuous venovenous hemofiltration is used to
- A. remove fluids and solutes through the process of convection.
- B. remove plasma water in cases of volume overload.
- C. remove plasma water and solutes by adding dialysate.
- D. combine ultrafiltration, convection, and dialysis.
Correct Answer: A
Rationale: The correct answer is A because continuous venovenous hemofiltration (CVVH) primarily removes fluids and solutes through the process of convection. In CVVH, blood flows through a filter where hydrostatic pressure drives plasma water and solutes across a semipermeable membrane. This process mimics the natural filtration that occurs in the kidneys. Choice B is incorrect because CVVH does not specifically target plasma water only but also removes solutes. Choice C is incorrect because CVVH does not involve adding dialysate to remove plasma water and solutes. Choice D is incorrect because while CVVH may involve ultrafiltration and convection, it does not typically include dialysis as a primary mechanism for solute removal.
The family members are excited about being transferring t heir loved one from the critical care unit to the intermediate care unit. However, they are also fearful of the change in environment and nursing staff. To reduce relocation stress, the nurse ca n implement what intervention? (Select all that apply.)
- A. Arranging for the nurses on the intermediate care unit to give the family a tour of the new unit.
- B. Contacting the primary care provider to see if the patient can stay one additional day in the critical care unit so that the family can adjus t better to the idea of a transfer.
- C. Ensuring that the patient will be located near the nurse ’s station in the new unit.
- D. Inviting the nurse who will be assuming the patient’s care to meet with the patient and family in the critical care unit prior to transfer.
Correct Answer: A
Rationale: The correct answer is A (Arranging for the nurses on the intermediate care unit to give the family a tour of the new unit) because it helps familiarize the family with the new environment, alleviating their fears. The tour allows them to see where their loved one will be cared for, meet the nursing staff, and ask any questions they may have. This intervention promotes a smooth transition, reduces anxiety, and builds trust.
Choice B is incorrect because delaying the transfer doesn't address the fear of change and can prolong stress. Choice C is incorrect as proximity to the nurse's station may not necessarily reduce relocation stress for the family. Choice D is incorrect because meeting the new nurse in the current unit may not provide the same level of comfort and preparation compared to physically visiting the new unit.
An 80-year-old client is given morphine sulphate for postoperative pain. Which concomitant medication should the nurse question that poses a potential development of urinary retention in this geriatric client?
- A. Antacids.
- B. Tricyclic antidepressants.
- C. Nonsteroidal anti-inflammatory agents.
- D. Insulin.
Correct Answer: B
Rationale: The correct answer is B: Tricyclic antidepressants. Tricyclic antidepressants can cause anticholinergic effects, including urinary retention, especially in the elderly. Morphine sulfate can also contribute to urinary retention. Antacids (A) and nonsteroidal anti-inflammatory agents (C) are not known to cause urinary retention. Insulin (D) does not pose a risk for urinary retention in this scenario.
The emergency department (ED) triage nurse is assessing four victims involved in a motor vehicle collision. Which patient has the highest priority for treatment?
- A. A patient with no pedal pulses.
- B. A patient with an open femur fracture.
- C. A patient with bleeding facial lacerations.
- D. A patient with paradoxical chest movements.
Correct Answer: D
Rationale: The correct answer is D: A patient with paradoxical chest movements. This indicates flail chest, a life-threatening condition where a segment of the chest wall moves independently from the rest.
1. Flail chest can lead to respiratory compromise and potential respiratory failure.
2. Immediate intervention is needed to stabilize the chest wall and support breathing.
3. Without prompt treatment, the patient can develop hypoxia and potentially progress to cardiac arrest.
Summary:
- Choice A: No pedal pulses may indicate vascular compromise but does not pose an immediate threat to life.
- Choice B: Open femur fracture requires urgent treatment but does not have the same immediate life-threatening implications as flail chest.
- Choice C: Bleeding facial lacerations can be managed after addressing more critical injuries like flail chest.
The nurse obtains the pulse rate of 89 beats/minute for an infant before administering digoxin (Lanoxin). Which action should the nurse take?
- A. Withhold the medication and contact the healthcare provider.
- B. Give the medication dosage as scheduled.
- C. Assess respiratory rate for one minute next.
- D. Wait 30 minutes and give half of the dosage of medication.
Correct Answer: A
Rationale: The correct answer is A. Infants typically have higher resting heart rates than adults, so a pulse rate of 89 beats/minute for an infant may indicate bradycardia. Digoxin can further lower the heart rate, leading to potential adverse effects like arrhythmias. Therefore, withholding the medication and contacting the healthcare provider is crucial to ensure the safety of the infant.
Choice B is incorrect because administering digoxin without addressing the elevated pulse rate can be dangerous. Choice C is incorrect as assessing respiratory rate does not address the immediate concern of the elevated pulse rate. Choice D is also incorrect as waiting and giving half of the dosage may further exacerbate the situation.