A nurse is caring for a client who has nausea and is vomiting. The nurse should identify that the client is at risk for which of the following acid-base imbalances?

Choice A reason: Donning sterile gloves is an essential step to prevent contamination and infection during the insertion of an indwelling urinary catheter. The nurse should also use aseptic technique and a sterile catheter kit.

Choice B reason: Applying an oil-based lubricant to the indwelling urinary catheter is not recommended, as it can damage the latex material and increase the risk of catheter-associated urinary tract infection (CAUTI). The nurse should use a water-soluble lubricant instead.

Choice C reason: Testing the balloon on the indwelling urinary catheter before insertion is a good practice, as it ensures that the balloon is functioning properly and does not leak or burst. The nurse should inflate and deflate the balloon with sterile water or saline using a syringe.

Choice D reason: Using one cotton swab to clean the client's urinary meatus is not sufficient, as it may not remove all the bacteria and debris. The nurse should use at least three cotton swabs and clean the meatus from front to back in a circular motion. The nurse should also use an antiseptic solution such as chlorhexidine or povidone-iodine.

Choice A reason: Prone is not the best position to allow maximal lung expansion. Prone is a position where the client lies on their stomach, with their head turned to one side. Prone can help to improve oxygenation in some cases of acute respiratory distress syndrome (ARDS), but it can also increase the risk of pressure ulcers, facial edema, and airway obstruction.

Choice B reason: Side-lying is not the best position to allow maximal lung expansion. Side-lying is a position where the client lies on their side, with their head supported by a pillow. Side-lying can help to prevent aspiration and reduce the work of breathing in some clients, but it can also compromise the ventilation of the dependent lung.

Choice C reason: Supine is not the best position to allow maximal lung expansion. Supine is a position where the client lies on their back, with their head and shoulders slightly elevated. Supine can help to maintain a patent airway and facilitate suctioning in some clients, but it can also increase the risk of atelectasis, pneumonia, and hypoxemia.

Choice D reason: Upright is the best position to allow maximal lung expansion. Upright is a position where the client sits or stands with their back straight and their chest expanded. Upright can help to improve lung compliance, reduce airway resistance, and enhance gas exchange in clients with respiratory failure. Upright can also reduce the pressure on the diaphragm and abdominal organs, and promote the drainage of secretions.