A nurse is reviewing the medical record of a client who is taking epoetin alfa. Which of the following laboratory tests should the nurse monitor to determine the effectiveness of the medication? (Select all that apply.)

Oxybutynin is an anticholinergic medication commonly used to treat urinary incontinence. One of the adverse effects of anticholinergic medications is the potential for bradycardia, which refers to a slower than normal heart rate. Anticholinergic medications can inhibit the effects of acetylcholine, a neurotransmitter responsible for regulating various bodily functions, including heart rate. Therefore, it is important to assess the client for signs of bradycardia after an unintended higher dose of oxybutynin.

Increased salivation (A) is not an expected adverse effect of oxybutynin. In fact, anticholinergic medications like oxybutynin often have the opposite effect, causing dry mouth and reduced salivation.

Hyperthermia (B) is not a typical adverse effect of oxybutynin. It is more commonly associated with other conditions or medications.

Urinary incontinence (C) is the condition that oxybutynin is intended to treat. It is not an adverse effect but rather the therapeutic effect of the medication.

The nurse should expect angioedema as one of the manifestations of anaphylaxis in a client experiencing an allergic reaction to an antibiotic. Angioedema is a severe swelling that occurs beneath the skin, typically affecting the face, lips, tongue, throat, or other body parts. It is a result of the release of histamine and other inflammatory mediators in response to the allergen.

Anaphylaxis is a life-threatening allergic reaction that can occur rapidly and affect multiple body systems. In addition to angioedema, other common manifestations of anaphylaxis include:

• Difficulty breathing or wheezing due to bronchospasm

• Hives or urticaria, which are itchy raised skin rashes

• Severe itching or tingling sensation

• Rapid and weak pulse

• Low blood pressure leading to hypotension

• Nausea, vomiting, or diarrhea

• Feeling of impending doom or anxiety

Let's go through the other options:

A. Hypertonic reflexes: This is not a manifestation of anaphylaxis. "Hypertonic reflexes" are not typically associated with allergic reactions or anaphylaxis. Hypertonic reflexes refer to increased muscle tone, but they are not part of the usual presentation of anaphylaxis.

B. Increase in systolic blood pressure: Anaphylaxis usually leads to a decrease in blood pressure rather than an increase. The decrease in blood pressure can be severe and result in shock, which is a life-threatening condition.

D. Urinary retention: Urinary retention is not a common manifestation of anaphylaxis. Anaphylaxis primarily affects the respiratory and circulatory systems, leading to airway constriction, difficulty breathing, and cardiovascular collapse. Urinary retention is not directly related to the pathophysiology of anaphylaxis.