A nurse is caring for a client in a provider's office. Exhibits Click to highlight the findings that indicate an adverse effect of the medication. To deselect a finding, click on the finding again. Nurses' Notes Today: Client returns for follow-up visit after starting labetalol. Client reports feeling more tired since starting the medication and is having trouble sleeping. Client states. "I have also had loose stools several times this week and often get dizzy whenever I stand up." Vital Signs Today: Temperature 37° C (98.6°F) Heart rate 56/min Respiratory rate 14/min Blood pressure 118/76 mm Hg

● Heart rate 56/min (bradycardia): Labetalol, a beta blocker, can lower the heart rate, leading to bradycardia, which may cause symptoms such as fatigue, dizziness, or weakness. ● Dizziness when standing up (orthostatic hypotension): Labetalol can cause a drop in blood pressure when standing, resulting in dizziness or lightheadedness due to orthostatic hypotension. ● Loose stools several times this week (gastrointestinal effects): Diarrhea or other gastrointestinal disturbances are possible side effects of labetalol. These can occur as the body adjusts to the medication. ● Feeling more tired (fatigue): Fatigue is a common adverse effect of beta blockers like labetalol, often due to the medication’s heart rate-lowering and blood pressure-lowering effects. ● Temperature 37° C (98.6°F): Normal temperature, indicating no signs of infection. ● Blood pressure 118/76 mm Hg: This shows a good response to the medication, with controlled blood pressure, a positive effect of labetalol.