A nurse is caring for a patient with a history of chronic obstructive pulmonary disease (COPD). The nurse should monitor for which of the following signs of exacerbation?

Correct Answer: A

Rationale: The correct answer is A because increased sputum production and shortness of breath are classic signs of exacerbation in COPD. This indicates worsening airflow limitation and potential respiratory distress. Monitoring these signs helps in early intervention and preventing further complications. B: Improved oxygen saturation is not a sign of exacerbation in COPD. It would actually suggest improvement in the patient's condition. C: Increased energy levels are not typical signs of exacerbation in COPD. Patients usually experience fatigue and weakness during exacerbations. D: Decreased respiratory rate is not indicative of exacerbation in COPD. It could be a sign of respiratory depression or sedation, but not exacerbation.

Correct Answer: B

Rationale: The correct answer is B: Cold, dry air. Cold, dry air is a common trigger for asthma exacerbations, as it can irritate the airways and lead to bronchoconstriction. This trigger can worsen asthma symptoms and increase the risk of an asthma attack. Educating the patient to avoid cold, dry air can help prevent asthma flare-ups. Explanation for why the other choices are incorrect: A: Exercise-induced asthma is triggered by physical activity but can be managed with proper warm-up and medication. It is not typically something to avoid altogether. C: Caffeine is a mild bronchodilator and can actually help alleviate asthma symptoms in some cases. D: Environmental allergens can trigger asthma in some individuals, but they vary from person to person, so avoidance strategies would depend on specific allergens identified through testing.

Correct Answer: B

Rationale: The correct answer is B because deep breathing and coughing exercises help prevent complications such as atelectasis and pneumonia after abdominal surgery. By promoting lung expansion and clearing secretions, these exercises enhance oxygenation and prevent respiratory issues. Administering pain medication (A) is important but not the priority. Monitoring for infection (C) and providing wound care (D) are also crucial but come after ensuring respiratory function.

Correct Answer: B

Rationale: The correct answer is B: Providing a source of fast-acting carbohydrate. In hypoglycemia, the priority is to quickly raise the patient's blood sugar levels to prevent potential complications like seizures or loss of consciousness. Fast-acting carbohydrates, such as glucose tablets or juice, can rapidly increase blood sugar levels. Administering insulin (A) would further lower blood sugar levels, worsening the situation. Administering an oral hypoglycemic agent (C) is not appropriate in an acute hypoglycemic episode. Monitoring blood pressure (D) is important but not the priority in this situation.

Correct Answer: C

Rationale: The correct answer is C: Deep vein thrombosis (DVT). After knee replacement surgery, the patient is at a higher risk for developing DVT due to immobility and altered blood flow. Monitoring for signs such as calf pain, swelling, and redness is crucial to prevent complications like pulmonary embolism. Pulmonary embolism (Choice A) is a potential complication of untreated DVT. Gastrointestinal bleeding (Choice B) is not directly related to knee replacement surgery. Hypoglycemia (Choice D) is not a common complication post-knee replacement. Monitoring for DVT is essential in preventing life-threatening complications for the patient.