Answer to Question 1
Correct Answer: 4
Rationale 1: The diet should be low in salt and fat.
Rationale 2: There is no contraindication to taking these classifications of medications with grapefruit.
Rationale 3: Everyone should maintain an exercise regimen. This is not specific to the classification of medication given.
Rationale 4: Because concurrent use of a calcium channel blocker and a beta-adrenergic blocker can cause partial or complete heart block, palpitations or dyspnea should be reported immediately. The nurse should give instructions in terms the client can understand.
Global Rationale: Because concurrent use of a calcium channel blocker and a beta-adrenergic blocker can cause partial or complete heart block, palpitations or dyspnea should be reported immediately. The nurse should give instructions in terms the client can understand. The diet should be low in salt and fat. There is no contraindication to taking these classifications of medications with grapefruit. Everyone should maintain an exercise regimen. This is not specific to the classification of medication given.
Answer to Question 2
Correct Answer: 1
Rationale 1: Like other potassium channel blockers, dofetilide prolongs the refractory period and action potential duration, thus increasing the QT interval.
Rationale 2: T waves are not affected.
Rationale 3: Dofetilide has no effect on the PR interval.
Rationale 4: Dofetilide does not widen the QRS.
Global Rationale: Like other potassium channel blockers, dofetilide prolongs the refractory period and action potential duration, thus increasing the QT interval. Dofetilide has no effect on the T waves or PR interval andit does not widen the QRS.
Feedforward control of breathing rate in an animal trained for athletic exercise.
The surgical nurse assists the client into the correct position
FDA-Approved Indications for Calcium Channel Blockers
An ob/ob mouse and a control mouse.
Feedback control of adrenal cortex
Control of Hormone Secretion