A nurse is assessing a patient who has a history of deep vein thrombosis (DVT). Which of the following findings would be most concerning?

Correct Answer: C

Rationale: The correct answer is C: Shortness of breath and chest pain. This is most concerning because it could indicate a pulmonary embolism, a serious complication of DVT where a blood clot travels to the lungs. Shortness of breath and chest pain are signs of compromised respiratory and cardiac function. A: Pain and swelling in the leg are common symptoms of DVT but not as concerning as symptoms of a pulmonary embolism. B: Redness and warmth around the affected area are typical signs of inflammation associated with DVT but do not indicate a life-threatening complication like a pulmonary embolism. D: Pale skin and decreased pulse in the affected leg could be signs of compromised circulation due to DVT, but they are not as immediately life-threatening as symptoms of a pulmonary embolism.

Correct Answer: A

Rationale: The correct answer is A: Administer albuterol. Albuterol is a bronchodilator that helps open the airways, relieving wheezing in asthma patients. It is the first-line treatment for acute asthma exacerbations. Antihistamines (B) do not treat asthma symptoms. Monitoring for infection (C) is important but not the immediate action for wheezing. Epinephrine (D) is used for severe allergic reactions, not routine asthma management.

Correct Answer: A

Rationale: The correct answer is A: Administer oxygen. Oxygenation is the priority in stroke management to ensure adequate oxygen supply to the brain. Oxygen therapy can help reduce hypoxia, which is crucial in the acute phase of a stroke. Administering aspirin (B) is important but comes after ensuring oxygenation. Administering thrombolytics (C) requires proper assessment and diagnostic confirmation, not an immediate priority. Placing the client in a supine position (D) may worsen stroke symptoms if there is compromised blood flow, so it is not recommended as the initial action.

Correct Answer: A

Rationale: The correct answer is A because tolerance is a physiological phenomenon where the body adapts to a drug, requiring higher doses for the same effect. This is a common occurrence with opioids in chronic pain management. Choice B is incorrect as it refers to drug-seeking behavior, not tolerance. Choice C is incorrect because addiction and physical dependence are different concepts. Choice D is incorrect as it relates to a specific scenario of substance abuse alongside chronic pain, not the mechanism behind the need for increased opioid doses in chronic pain management.

Correct Answer: D

Rationale: The correct answer is D: Lupus. Lupus can affect the kidneys, leading to renal impairment. Renal impairment can decrease the body's ability to excrete ammonia, resulting in elevated levels. Renal failure (choice A) can also lead to elevated ammonia levels, but lupus specifically contributes to renal issues. Cirrhosis (choice B) primarily affects the liver, not kidneys. Psoriasis (choice C) is a skin condition and does not directly impact ammonia levels.

Correct Answer: C

Rationale: The correct answer is C. Stopping insulin once blood glucose is normal is incorrect as insulin is crucial for managing diabetes even when blood glucose levels are within the target range. Insulin helps regulate blood sugar levels consistently, and stopping it abruptly can lead to hyperglycemia. Choices A, B, and D are correct statements indicating good diabetes management practices. Monitoring blood glucose levels, exercising regularly, and following a balanced diet are essential for controlling blood sugar levels and overall health.

Correct Answer: B

Rationale: The correct answer is B: Monitor for signs of infection. Within the first 48 hours post-op, fever is often indicative of an infection. Monitoring for signs such as increased pain, redness, swelling, warmth at the surgical site, elevated white blood cell count, and changes in vital signs helps in early detection and prompt treatment of infections. Administering antipyretics (choice A) may help reduce fever but does not address the underlying cause. Administering fluids (choice C) is important for hydration but does not directly address the fever's cause. Performing an abdominal assessment (choice D) is not specific to addressing fever in a post-op client.

Correct Answer: B

Rationale: Acyclovir is a nucleoside analog antiviral drug that is specifically effective against herpes simplex virus (HSV) types 1 and 2, as well as varicella-zoster virus (VZV). The drug works by inhibiting viral DNA synthesis. HSV and VZV are both members of the herpes virus family, and acyclovir is most commonly prescribed for infections caused by these viruses. Therefore, the correct answer is B. Choice A (HIV) is incorrect because acyclovir is not effective against HIV. Choice C (CMV) is incorrect because acyclovir is less effective against cytomegalovirus (CMV) compared to HSV and VZV. Choice D (influenza A viruses) is incorrect because acyclovir is not indicated for the treatment of influenza viruses.

Correct Answer: A

Rationale: The correct answer is A: Blood pressure measurement. Dizziness and weakness can be symptoms of hypotension or low blood pressure. Prioritizing blood pressure measurement is crucial because it can indicate if the patient is at risk of complications like cardiovascular collapse. Pulse oximetry (B) is important for assessing oxygen levels in the blood but may not directly address dizziness and weakness. Blood glucose levels (C) are important but not the priority in this scenario. Cardiac monitoring (D) may be necessary but should come after assessing blood pressure to rule out immediate life-threatening conditions.