A nurse is collecting data on a patient who has chronic kidney disease.
Which finding is a sign of hyperkalemia?

Choice A rationale:

Tachycardia, or a rapid heart rate, is not typically an adverse effect of oxygen therapy. Oxygen therapy is often used to help people with conditions like COPD, COVID-19, emphysema, and sleep apnea get enough oxygen to function and stay well. While tachycardia can be a symptom of these conditions, it is not directly caused by the oxygen therapy itself.

Choice B rationale:

Cracks in the oral mucous membranes can indeed be an adverse effect of oxygen therapy. Oxygen therapy involves the delivery of highly concentrated oxygen, which can cause irritation and dryness in the airways, including the oral mucous membranes. This can lead to cracks and discomfort in the mouth. Therefore, it’s important for healthcare providers to monitor patients receiving oxygen therapy for signs of this adverse effect.

Excessive pulmonary secretions are not typically a direct adverse effect of oxygen therapy. While conditions that often require oxygen therapy, such as pneumonia and COPD, can lead to increased pulmonary secretions, these are symptoms of the underlying disease rather than the oxygen therapy itself.

Choice D rationale:

Poor skin turgor is not typically an adverse effect of oxygen therapy. Skin turgor refers to the elasticity of the skin, and poor skin turgor is often a sign of dehydration. While oxygen therapy can cause dryness of the mucous membranes, it does not typically affect the hydration status of the skin.

Choice A rationale:

Donning sterile gloves before inserting the indwelling urinary catheter is a standard practice in healthcare to prevent infection. The urinary tract is normally sterile, and the use of sterile gloves helps maintain this sterility during the catheter insertion process. Choice B rationale:

Oil-based lubricants should not be used with indwelling urinary catheters. These lubricants can damage the catheter material and increase the risk of infection. Instead, water-soluble lubricants are recommended as they do not damage the catheter and can reduce patient discomfort during the insertion process.

Choice C rationale:

Testing the balloon on the indwelling urinary catheter before insertion is a critical step. This is done to ensure that the balloon inflates and deflates properly. If the balloon does not function correctly, it could cause discomfort or injury to the patient during insertion and could fail to keep the catheter in place once inserted.

Choice D rationale:

Cleaning the patient’s urinary meatus with one cotton swab is a part of the standard procedure before inserting an indwelling urinary catheter. This step is taken to remove any bacteria present at the site of insertion, thereby reducing the risk of introducing bacteria into the bladder during the catheter insertion.