Critical Care Nursing NCLEX Questions

Correct Answer: C

Rationale: Rationale for Correct Answer (C): When the low-pressure alarm sounds for a patient with an arterial line, the nurse should assess for cardiac dysrhythmias first. This is because a sudden drop in pressure could indicate a serious issue affecting the heart's ability to pump effectively. Identifying and addressing any cardiac dysrhythmias promptly is crucial for patient safety. Summary of Incorrect Choices: A: Fast flush of the arterial line - This would not address the underlying cause of the low-pressure alarm and may not be necessary. B: Check the left hand for pallor - While assessing perfusion is important, it is not the priority when the alarm indicates a potential cardiac issue. D: Rezero the monitoring equipment - While important for accuracy, it is not the priority when the alarm indicates a potential cardiac concern.

Correct Answer: D

Rationale: Ultrafiltration is the correct answer because it involves the removal of plasma water and low-molecular weight particles by using a pressure or osmotic gradient. During ultrafiltration, the pressure gradient pushes the fluid through a semipermeable membrane, separating the substances based on their molecular size. This process allows for the selective removal of unwanted substances while retaining essential components. Dialysis (choice A) involves the removal of waste products from the blood, but it does not specifically target plasma water and low-molecular weight particles. Diffusion (choice B) is the passive movement of particles from an area of higher concentration to an area of lower concentration and is not specific to the removal of plasma water. Clearance (choice C) refers to the rate at which a substance is removed from the blood and does not involve the mechanism of pressure or osmotic gradient utilized in ultrafiltration.

Correct Answer: C

Rationale: The correct interpretation is C: Normal ABG values. 1. pH is within the normal range of 7.35-7.45. 2. PaCO2 is 40 mm Hg, within the normal range of 35-45 mm Hg. 3. Bicarbonate is 24 mEq/L, within the normal range of 22-26 mEq/L. 4. PaO2 is 95 mm Hg, within the normal range of 80-100 mm Hg. 5. Oxygen saturation is 97%, which is normal. 6. Respirations are also within the normal range at 20 breaths per minute. Overall, all values fall within the normal range, indicating a well-maintained acid-base balance. Other choices are incorrect because there are no abnormalities that would suggest compensated metabolic acidosis, metabolic alkalosis, or respiratory acidosis based on the given ABG values.

Correct Answer: B

Rationale: The correct answer is B because developing a standardized reporting form for family information that is incorporated into the patient's medical record ensures consistency and accuracy in sharing vital details about family structure and dynamics from shift to shift. This method allows all healthcare providers to access the information easily and update it as needed, promoting continuity of care and comprehensive understanding of the family's needs. Choices A, C, and D are incorrect because: A: Creating an informal family information sheet may lead to inconsistencies in the information shared among healthcare providers and may not be updated regularly. C: Requiring only the charge nurse to have detailed information may result in information silos and lack of accessibility for all team members. D: Discussing family dynamics as part of the change-of-shift report may lead to important details being missed or forgotten, compromising the quality of care provided.

Correct Answer: B

Rationale: The correct answer is B: Art therapy. Art therapy can help critically ill patients express emotions, reduce anxiety, and cope with pain in a nonverbal way. It provides a creative outlet for self-expression and can improve overall well-being. Anaerobic exercise (A) may not be suitable for critically ill patients due to physical limitations. Guided imagery (C) may not be effective for all patients and requires a certain level of cognitive ability. Music therapy (D) can be beneficial, but art therapy is specifically known for its effectiveness in addressing emotional and psychological needs in critically ill patients.