Final answer:
A night cough could indicate an adverse reaction to the beta-blocker propranolol, which is used to treat hypertension by blocking beta-1 receptors and lowering heart rate. Other options provided, such as tinnitus, excessive tearing, and increased salivation, are not commonly noted as adverse effects of propranolol.
Step-by-step explanation:
A nurse in a provider's office is assessing a client who has hypertension and takes propranolol. The nurse needs to determine if the client is experiencing an adverse reaction to this medication. Propranolol is a beta-blocker that works by blocking beta-1 receptors, which are G-protein-linked receptors in heart muscles, thereby reducing heart rate and blood pressure. Since propranolol affects heart function and other body systems, an adverse reaction to this medication could include a range of cardiovascular and respiratory symptoms.
Among the options provided, report of a night cough could indicate an adverse reaction to propranolol. Beta-blockers can sometimes exacerbate underlying respiratory conditions such as asthma or chronic obstructive pulmonary disease (COPD) and lead to coughing, especially at night when lying down. The other symptoms listed, such as tinnitus, excessive tearing, and increased salivation, are not commonly associated with propranolol use.
Adverse reactions to propranolol could also include bradycardia, or an abnormally slow heart rate, which could progress to heart stoppage if the medication is overprescribed. The nurse should monitor the client's heart rate and be aware of other signs of adverse effects, such as dizziness, fatigue, or difficulty breathing.