Hypokalemia is often associated with which one of the following conditions?

A. When performing hand hygiene, the hands should be held lower than the elbows to allow water to flow downward, preventing the contamination of the forearms.

B. The water temperature should be warm, but not hot, to prevent skin irritation. Extremely hot water is not necessary for effective hand hygiene.

C. Hands and arms should be rubbed together to create friction during hand washing. However, drying should be done with a clean paper towel or air dryer, not by rubbing the hands and arms together.

D. The correct amount of liquid soap for hand hygiene is typically 4 to 5 mL. This is the appropriate amount to ensure effective coverage and cleaning of the hands.

A. Cyanosis is a common feature in both chronic bronchitis and emphysema due to hypoxemia, but it is more often seen in chronic bronchitis due to the persistent airway obstruction and reduced gas exchange.

B. Dyspnea (shortness of breath) is more commonly associated with emphysema due to the destruction of alveolar walls and loss of lung elasticity, which impairs gas exchange. Chronic bronchitis can also cause dyspnea, but it is more closely linked with emphysema.

C. Lymphadenopathy is not a characteristic feature of chronic bronchitis or emphysema; it is more associated with infections or malignancies.

D. Chronic bronchitis is characterized by a persistent cough with sputum production, which is a hallmark symptom. This is more prominent in chronic bronchitis than in emphysema, where the cough is less frequent and sputum production is less significant.