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.

Correct Answer: A

Rationale: The correct answer is to watch for changes in emotion and behavior. The frontal lobe, particularly the left side, is responsible for regulating behavior and emotions. Therefore, following a left frontal lobe CVA, monitoring for alterations in emotion and behavior is crucial. Choices B, C, and D are incorrect because loss of hearing, appetite and vision deficits, and changes in facial muscle control are not directly associated with a left frontal lobe CVA.

Correct Answer: C

Rationale: In this scenario, the nurse should note the location of the mole and follow up with the attending physician through the medical record and a phone call. This action is appropriate because a mole with irregular edges and a bluish color raises concern for melanoma, a type of skin cancer. Recommending a dermatological consult (Choice A) might delay the evaluation and management of the mole. Contacting the physician via telephone (Choice B) may not provide a documented record of the observation. Removing the mole without proper evaluation (Choice D) could be dangerous and is not within the nurse's scope of practice.

Correct Answer: A

Rationale: The correct answer is the 76-year-old widow with chronic renal failure. Elderly individuals with chronic diseases, especially men, are at very high risk for suicide. The other choices, although they may be vulnerable populations, do not carry as high a risk for suicide. The 19-year-old with new SSRI therapy may actually have a lower risk as they are receiving treatment. The 28-year-old post-partum individual is experiencing a common emotional response after childbirth, which is not necessarily indicative of a high suicide risk. The 50-year-old with OCD and depression is at risk but not as high as elderly individuals with chronic illness.

Correct Answer: A

Rationale: The most critical time for assessment in a newborn is during the second period of reactivity, which occurs approximately 3-5 hours after delivery. During this phase, newborns are more likely to gag on mucus and aspirate, making it crucial for the nurse to assess their respiratory status first. Choice A indicates a newborn in this critical phase, requiring immediate assessment for potential airway compromise or respiratory distress. Choices B, C, and D do not present an immediate need for assessment related to airway compromise or respiratory distress.