A nurse is reinforcing teaching with a client who is at risk for hypokalemia. The nurse should instruct the client that which of the following foods is the best source of potassium?

Choice A reason: Stripping the client's chest tube every 2 hours is not a recommended action, as it can cause excessive negative pressure, tissue trauma, and pain. The nurse should only strip the chest tube if there is a clot or obstruction in the tubing, and only with the provider's order.

Choice B reason: Looping the tubing of the chest tube on the client's bed is a correct action, as it prevents kinking, tension, or pulling on the chest tube. The nurse should also secure the tubing to the bed sheet with a safety pin.

Choice C reason: Placing the chest tube drainage system above the level of the client's heart is not a correct action, as it can cause the fluid to flow back into the chest cavity and impair lung expansion. The nurse should place the chest tube drainage system below the level of the client's chest.

Choice D reason: Taping the connections on the client's chest tube is a correct action, as it prevents air leaks, disconnections, or accidental removal of the chest tube. The nurse should also check the connections regularly for tightness and patency.

Choice A reason: Crackles auscultated over the client's lung fields are not a sign of pleural effusion. Crackles are abnormal breath sounds that indicate fluid or secretions in the alveoli. They can be heard in conditions such as pneumonia, heart failure, or pulmonary edema.

Choice B reason: Crepitus palpated on the client's chest is not a sign of pleural effusion. Crepitus is a crackling sensation that occurs when air leaks into the subcutaneous tissue. It can be felt in conditions such as pneumothorax, chest trauma, or chest surgery.

Choice C reason: Substernal retractions noted on the client's chest are not a sign of pleural effusion. Substernal retractions are inward movements of the chest wall below the sternum that indicate increased respiratory effort. They can be seen in conditions such as asthma, bronchiolitis, or croup.

Choice D reason: Dullness percussed over the client's lung fields is a sign of pleural effusion. Dullness is a flat sound that indicates the presence of a solid or liquid mass in the thoracic cavity. It can be detected in conditions such as pleural effusion, atelectasis, or consolidation.