A nurse is preparing to administer two medications with antagonistic effects.What should be considered when administering these drugs?

The combined effect is greater than either drug alone

The combined effect is less than either drug alone

The combined effect is equal to sum of individual effects

Antagonistic effects do not affect pharmacodynamics

Answer and Explanation

The Correct Answer is B

Antagonistic effects occur when two drugs produce opposing effects and their combined effect is less than the sum of their individual effects.When administering two drugs with antagonistic effects,the nurse should consider their combined effect and adjust dosing accordingly.

a.Antagonistic effects occur when two drugs produce opposing effects and their combined effect is less than the sum of their individual effects.

c.Antagonistic effects occur when two drugs produce opposing effects and their combined effect is less than the sum of their individual effects.

d.Antagonistic effects affect pharmacodynamics by determining how two drugs interact when given together.

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Correct Answer is B

Explanation

An allosteric modulator is a medication that binds to a specific receptor at a site different from the binding site for endogenous ligands.Allosteric modulators can affect receptor activity by enhancing or inhibiting the binding or activity of endogenous ligands.

a.An allosteric modulator binds to a different site from endogenous ligands,not the same site.

c.An allosteric modulator affects receptor activity indirectly by enhancing or inhibiting the binding or activity of endogenous ligands.

d.Allosteric modulation affects pharmacodynamics by altering receptor activity through indirect mechanisms.

A. The combined effect is greater than either drug alone B. The combined effect is less than either drug alone C. The combined effect is equal to sum of individual effects D. Synergistic effects do not affect pharmacodynamics

Correct Answer is A

Explanation

Synergistic effects occur when two drugs produce similar or complementary effects and their combined effect is greater than the sum of their individual effects.When administering two drugs with synergistic effects,the nurse should consider their combined effect and adjust dosing accordingly.

b.Synergistic effects occur when two drugs produce similar or complementary effects and their combined effect is greater than the sum of their individual effects

c.Synergistic effects occur when two drugs produce similar or complementary effects and their combined effect is greater than the sum of their individual effects

d.Synergistic effects affect pharmacodynamics by determining how two drugs interact when given together

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A nurse is preparing to administer two medications with antagonistic effects.What should be considered when administering these drugs?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer a medication that acts as an allosteric modulator.What does this mean?

Correct Answer is B

Explanation

A nurse is preparing to administer two medications with synergistic effects.What should be considered when administering these drugs?

Correct Answer is A

Explanation

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