Chapter 18: Adrenergic Drugs

Question 1

When an adrenergic drug stimulates beta1-adrenergic receptors, the result is an increased force of contraction, which is known as what type of effect?

Answer 1

Positive inotropic

An increased force of contraction is known as a positive inotropic effect.

Question 2

The nurse is aware that adrenergic drugs produce effects similar to which of these nervous systems?

Answer 2

Sympathetic nervous system

Adrenergic drugs mimic the effects of the sympathetic nervous system.

Question 3

The nurse is administering a stat dose of epinephrine. Epinephrine is appropriate for which situation?

Answer 3

Cardiac arrest

Treatment of cardiac arrest is an indication for the use of epinephrine. The other options are not indications for epinephrine

Question 4

An adrenergic agonist is ordered for a patient in shock. The nurse will note that this drug has had its primary intended effect if which expected outcome occurs?

Answer 4

Increased cardiac output

For a patient in shock, a primary benefit of an adrenergic agonist drug is to increase cardiac output. A drug in this category should not be used in place of volume restoration, nor does it provide volume restoration (IV fluids do this). Adrenergic agonists may enhance urine output if cardiac output and perfusion to the kidneys increase. These drugs do not reduce anxiety.

Question 5

When a patient is taking an adrenergic drug, the nurse expects to observe which effect?

Answer 5

Increased heart rate

Increased heart rate is one of the effects of adrenergic drugs. Sympathetic nervous system stimulation also results in bronchodilation, dilated pupils, and decreased gastrointestinal mobility, depending upon which receptors are stimulated