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LPN Nursing Questions Related to Pharmacology

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Ati Pharmacology
LPN Nursing Questions Related to Pharmacology

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Question 1 of 78

Clinical judgment in prescribing includes:

A. Factoring in the cost to the patient of the medication prescribed

B. Always prescribing the newest medication available for the disease process

C. Handing out drug samples to poor patients

D. Prescribing all generic medications to cut costs

Correct Answer:

Rationale:

Question 2 of 78

The point in time on the drug concentration curve that indicates the first sign of a therapeutic effect is the:

A. Minimum adverse effect level

B. Peak of action

C. Onset of action

D. Therapeutic range

Correct Answer:

Rationale:

Question 3 of 78

Which of the following statements about the major distribution barriers (blood-brain or fetal-placental) is true?

A. Water soluble and ionized drugs cross these barriers rapidly.

B. The blood-brain barrier slows the entry of many drugs into and from brain cells.

C. The fetal-placental barrier protects the fetus from drugs taken by the mother.

D. Lipid-soluble drugs do not pass these barriers and are safe for pregnant women.

Correct Answer:

Rationale:

Question 4 of 78

An agonist activates a receptor and stimulates a response. When given frequently over time, the body may:

A. Upregulate the total number of receptors

B. Block the receptor with a partial agonist

C. Alter the drug's metabolism

D. Downregulate the numbers of that specific receptor

Correct Answer:

Rationale:

Question 5 of 78

Upregulation or hypersensitization may lead to:

A. Increased response to a drug

B. Decreased response to a drug

C. An exaggerated response if the drug is withdrawn

D. Refractoriness or complete lack of response

Correct Answer:

Rationale:

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