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Author Question: The nurse understands that a medication such as carvedilol (Coreg) may not be effective in an ... (Read 57 times)

soccerdreamer_17

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on: Jul 23, 2018
The nurse understands that a medication such as carvedilol (Coreg) may not be effective in an African-American patient because of its effects on
 
  a. cardiac contractility.
  b. heart rate.
  c. renin release.
  d. vascular resistance.

Question 2

A patient has a blood pressure of 155/95 mm Hg. The nurse understands that this patient's risk of cardiovascular disease is _____ greater than normal.
 
  a. two times
  b. three times
  c. four times
  d. six times


ttt030911

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Reply #1 on: Jul 23, 2018
Answer to Question 1

ANS: C
African Americans are more likely to be susceptible to low-renin hypertension. Beta blockers reduce heart rate, contractility, and renin release, and there is a greater hypotensive response in patients with higher renin levels. Changes in heart rate, contractility, and vascular resistance explain why there is some response in this group.

Answer to Question 2

ANS: C
Cardiovascular disease (CVD) risk doubles with each increase of 20/10 mm Hg above normal, starting at 115/75 mm Hg. This patient's blood pressure is 40/20 above normal, which increases the risk four times. A blood pressure of 135/85 would be two times greater. The patient's risk would still be four times greater with a blood pressure of 155/70 or 130/95, since systolic and diastolic blood hypertension are each powerful predictors of CVD.


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soccerdreamer_17

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Reply #2 on: Jul 23, 2018
Both answers were spot on, thank you once again


ttt030911

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Reply #3 on: Jul 23, 2018
Great! Please up vote :D


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