Critical Care Nursing Practice Questions

Correct Answer: C

Rationale: Rationale for Correct Answer (C - Assess the cuff for proper arm size): 1. The cuff blood pressure (70/40 mm Hg) is significantly lower than the arterial blood pressure (108/70 mm Hg). 2. Discrepancy suggests cuff size mismatch, leading to inaccurate readings. 3. Assessing cuff size ensures accurate blood pressure measurement. 4. Ensures appropriate interventions based on accurate readings. Summary of Incorrect Choices: A: Rapid response not warranted based solely on blood pressure discrepancy. B: Trendelenburg position not indicated for cuff size issue. D: Normal saline bolus not appropriate without accurate blood pressure measurement.

Correct Answer: C

Rationale: The correct answer is C: Notify the organ procurement organization (OPO). This is the best action because the OPO is responsible for coordinating organ donation and transplantation. By involving the OPO, the nurse ensures that the donation process is handled appropriately and ethically. Choice A: Arranging a multidisciplinary meeting with physicians may be necessary but should not be the first step in this situation. Choice B: Consulting the hospital�s ethics committee may be helpful, but the immediate priority is to involve the OPO to facilitate organ donation. Choice D: Obtaining family consent to withdraw life support is not the nurse�s role in this situation. The focus should be on organ donation to honor the family's wishes.

Correct Answer: D

Rationale: The correct answer is D: Attach cardiac monitoring leads before the procedure. This is essential to monitor the patient's cardiac rhythm and detect any abnormalities during catheter insertion. Cardiac monitoring leads provide real-time information on the patient's heart rate and rhythm, allowing the nurse to promptly address any complications. A: Determining if the cardiac troponin level is elevated is not directly related to assisting with pulmonary artery catheter insertion. B: Auscultating heart and breath sounds during insertion is important but does not take precedence over attaching cardiac monitoring leads. C: Placing the patient on NPO status before the procedure may be necessary for other procedures, but it is not specifically required for assisting with pulmonary artery catheter insertion.

Correct Answer: C

Rationale: The correct answer is C: Ptosis on the left eyelid. Ptosis refers to drooping of the eyelid, which is a common condition in older adults. In this scenario, the nurse should document the finding as ptosis on the left eyelid because the client's left upper eyelid is drooping, covering more of the iris than the right eyelid. Explanation: Nystagmus (A) is an involuntary eye movement, not related to eyelid drooping. Exophthalmos (B) is the protrusion of the eyeball and not relevant to this scenario. Astigmatism (D) refers to a refractive error of the eye and does not cause eyelid drooping. Therefore, the correct choice is C as it accurately describes the client's condition.

Correct Answer: A

Rationale: The correct answer is A because postrenal acute kidney injury is caused by obstruction of urine flow, leading to pressure build-up in the kidneys and subsequent damage. Obstructions can be due to conditions such as kidney stones, tumors, or enlarged prostate. Choices B, C, and D are incorrect as they relate to pre-renal and intrinsic renal causes of acute kidney injury, not specifically postrenal obstruction. B refers to decreased blood flow to the kidneys, C to low volume or poor heart function affecting kidney perfusion, and D to direct damage to kidney tissue, which do not characterize postrenal etiology.