This topic contains a solution. Click here to go to the answer

Author Question: Which statement(s) about variables that influence drug action is/are true? (Select all that apply.) ... (Read 90 times)

cagreen833

  • Hero Member
  • *****
  • Posts: 544
Which statement(s) about variables that influence drug action is/are true? (Select all that apply.)
 
  a. An older adult will require increased dosage of a drug to achieve the same therapeutic effect as that seen in a younger person.
  b. Body weight can affect the therapeutic response of a medication.
  c. Chronic smokers may metabolize drugs more rapidly than nonsmokers.
  d. A patient's attitude and expectations affect the response to medication.
  e. Reduced circulation causes drugs to absorb more rapidly.

Question 2

A patient receives 200 mg of a medication that has a half-life of 12 hours. How many mg of the drug would remain in the patient's body after 24 hours?
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Beatricemm

  • Sr. Member
  • ****
  • Posts: 323
Answer to Question 1

ANS: B, C, D
Body weight can affect response to medications; typically, obese patients require an increase in dosage and underweight patients a decrease in dosage. Chronic smoking enhances metabolism of drugs. Attitudes and expectations play a major role in an individual's response to drugs. Older adults require decreased dosages of drugs to achieve a therapeutic effect. Decreased circulation causes drugs to absorb more slowly.

Answer to Question 2

ANS:
50

The half-life is defined as the amount of time required for 50 of the drug to be eliminated from the body. If a patient is given 200 mg of a drug that has a half-life of 12 hours, then 50 mg of the drug would remain in the body after 24 hours.





 

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

For a complete list of videos, visit our video library