Question

Clinical indications for the use of adrenergic drugs stem mainly from their effects on the heart, blood vessels, and bronchi. They are often used as emergency drugs. For which of the following conditions would these drugs be used? Choose all that apply.

a) Respiratory conditions
b) Fractures
c) Liver failure
d) Allergic disorders
e) Acute cardiovascular disorders

Answer 1

Adrenergic drugs, including B-blockers like metoprolol and propranolol, are typically used for respiratory conditions, allergic disorders, and acute cardiovascular disorders due to their sympathomimetic effects. They are not commonly used for treating fractures or liver failure.

Step-by-step explanation:

Clinical indications for the use of adrenergic drugs are based on their effects on various bodily functions, especially considering their sympathomimetic action which includes stimulating the heart, constricting blood vessels, and dilating bronchi. These drugs are often essential in emergency medical scenarios. The conditions for which adrenergic drugs would be used include:

• Respiratory conditions: Due to their bronchodilatory effects, adrenergic drugs can help in conditions like asthma and COPD.
• Allergic disorders: They are helpful in managing severe allergic reactions, including anaphylaxis, by counteracting the extensive vasodilation and facilitating bronchodilation.
• Acute cardiovascular disorders: In cases of cardiac arrest, heart failure, or shock, adrenergic drugs can improve cardiac output and perfusion.

On the contrary, for conditions such as fractures and liver failure, adrenergic drugs are not typically used as the primary treatment modality. B-blockers like metoprolol and propranolol, which are adrenergic antagonists, are used to manage cardiovascular diseases by blocking receptor-mediated effects that lead to increased heart rate and vasoconstriction, thereby treating high blood pressure and preventing heart attacks.