Correct Answer: A

Rationale: The correct answer is A. Washing out the feeding bag once every 24 hours with warm water can lead to bacterial growth due to inadequate cleaning, potentially causing diarrhea. Hot water, as in choice B, can also promote bacterial growth, which is not desirable. Changing the feeding bag every 48 hours, like in choice C, is within an acceptable timeframe and is unlikely to be a cause of diarrhea. Adding water to the formula before administration, as in choice D, is a common practice to dilute the formula but is not typically associated with causing diarrhea in this scenario.

Correct Answer: C

Rationale: The correct task that a healthcare provider should delegate to assistive personnel is performing a simple dressing change. Assistive personnel are trained and competent in performing basic wound care activities like simple dressing changes. Evaluating the healing of an incision requires clinical judgment and assessment skills that are typically performed by licensed healthcare professionals, such as nurses or physicians. Inserting an NG tube and changing IV tubing involve invasive procedures that require specialized training and skills, making them tasks that should be performed by licensed healthcare providers rather than assistive personnel.

Correct Answer: A

Rationale: The correct answer is A: 'Potassium 5.4'. A potassium level of 5.4 is elevated (normal range is typically 3.5-5.0 mEq/L) and may indicate hyperkalemia, which can have serious cardiac implications. Elevated potassium levels can lead to life-threatening arrhythmias, so immediate reporting and intervention are necessary. Choice B, 'Sodium 140', falls within the normal range (135-145 mEq/L) and does not require immediate reporting. Choice C, 'Calcium 8.6', falls within the normal range (8.5-10.5 mg/dL) and is not an immediate concern. Choice D, 'Magnesium 2.0', is within the normal range (1.5-2.5 mEq/L) and does not need urgent reporting. Therefore, the nurse should prioritize reporting the elevated potassium level as it poses the most immediate risk.

Correct Answer: D

Rationale: The correct answer is to further assess the patient. 'ROM as needed' stands for Range of Motion, indicating that the patient should have their limbs moved to maintain joint flexibility and muscle strength. Before initiating any movements, it is crucial to assess the patient's current condition to determine their abilities and limitations. Restricting mobility (choice A) is not appropriate as it contradicts the purpose of ROM exercises. Realizing the patient is unable to move extremities (choice B) assumes without assessment and can lead to inappropriate care. Moving all the patient's extremities (choice C) without assessing the patient first can be harmful, as it may cause pain or injury if done incorrectly. Therefore, further assessment is necessary to provide safe and effective care.

Correct Answer: C

Rationale: To administer 250 mL over 30 min with a drop factor of 10 gtt/mL, the healthcare professional should adjust the IV infusion to deliver 100 gtt/min. The correct calculation is: (250 mL · 30 min) x 10 gtt/mL = 100 gtt/min. This rate ensures the proper administration of the IV solution within the specified time frame. Choices A, B, and D are incorrect as they do not align with the accurate calculation based on the provided data.