A nurse is assessing a client who is receiving total parenteral nutrition (TPN). Which of the following findings should the nurse identify as an adverse effect of TPN

The client statement that indicates an understanding of the teaching is: "The medication can cause drowsiness."

Promethazine is an antihistamine medication commonly used to treat various conditions, such as allergies, motion sickness, and nausea. One of the most common side effects of promethazine is drowsiness or sedation. It has a significant sedative effect, and it is often used to induce sleep or manage insomnia in some cases.

Let's go through the other options:

A. "This medication can cause diarrhea": Diarrhea is not a common side effect of promethazine. While promethazine can cause certain gastrointestinal side effects like constipation or upset stomach, diarrhea is not typically associated with its use.

B. "The medication can cause increased salivation": Increased salivation is not a common side effect of promethazine. While some antihistamines can cause dry mouth, which is the opposite of increased salivation, promethazine does not usually cause excessive salivation.

C. "This medication can cause pupil constriction": Pupil constriction (miosis) is a potential side effect of some medications, but it is not commonly associated with promethazine. Promethazine is more likely to cause pupil dilation (mydriasis) rather than constriction.

The nurse should include lightheadedness as an adverse effect in the teaching for a client who has a new prescription for atenolol. Atenolol is a beta-blocker medication used to treat various conditions, including hypertension and certain heart conditions. One of the common side effects of beta-blockers is orthostatic hypotension, which can cause lightheadedness or dizziness when the client stands up from a sitting or lying position.

Let's go through the other options:

B. Tachycardia: Tachycardia is not an adverse effect of atenolol. In fact, atenolol is used to treat tachycardia by slowing down the heart rate.

C. Dry mouth: Dry mouth is not a typical adverse effect of atenolol. Dry mouth is more commonly associated with anticholinergic medications rather than beta-blockers like atenolol.

D. Bronchodilation: Bronchodilation is not an adverse effect of atenolol. In contrast, atenolol can cause bronchoconstriction (narrowing of the airways) in some individuals, particularly those with asthma or chronic obstructive pulmonary disease (COPD).