Pharmacology and the Nursing Process by Linda Lane Lilley: Practice Exam

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Ace your pharmacology exams with "Pharmacology and the Nursing Process" Packed with challenging quizzes based on the renowned textbook Pharmacology and the Nursing Process by Linda Lane Lilley (ISBN: 978-0323827973), it's the perfect tool to test your knowledge and prepare for success.

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What is the result of Theophylline's stimulation of the cardiovascular system in large doses?

Decreased heart rate
Decreased force of contraction
Increased force of contraction and increased heart rate
Reduction in blood flow to the kidneys

The correct answer is: Increased force of contraction and increased heart rate

Large doses of Theophylline result in increased stimulation to the cardiovascular system. This leads to an increase in both heart rate and force of contraction. Option A - decreased heart rate - is incorrect because the increased stimulation from Theophylline would cause the heart rate to increase. Option B - decreased force of contraction - is also incorrect for the same reason. Option D - reduction in blood flow to the kidneys - is incorrect because Theophylline primarily affects the cardiovascular system, not the renal system. Therefore, option C - increased force of contraction and increased heart rate - is the correct answer.