A patient is admitted to the hospital for a splenectomy. The nurse understands that the health-care provider prescribes an injection of vitamin K prior to surgery for which action?
To reduce risk of infection
To dry gastric secretions
To promote postoperative healing
To correct a clotting problem
The Correct Answer is D
A. While vitamin K plays a role in immune function, its administration prior to surgery primarily aims to correct potential clotting abnormalities rather than prevent infection.
B. Vitamin K does not affect gastric secretions. Its role in this context is unrelated to gastric function.
C. While vitamin K is involved in various physiological processes, its administration prior to surgery is primarily aimed at preventing bleeding complications by ensuring adequate clotting factor synthesis.
D. Vitamin K is essential for the synthesis of clotting factors in the liver.
Administering vitamin K prior to surgery helps ensure adequate levels of clotting factors, reducing the risk of bleeding during and after the procedure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Stewed apples are generally safe for a client with leukemia unless there are specific dietary restrictions.
B. While white bread is not typically contraindicated for leukemia patients, it is generally advisable to consume whole grains for better nutrition.
C. Well-done steak may pose a risk of bacterial contamination, especially for immunocompromised individuals such as those with leukemia. Therefore, it is advisable to avoid undercooked or raw meats.
D. Carrot sticks are generally safe and nutritious for individuals with leukemia unless there are specific dietary restrictions.
Correct Answer is ["C","D","E"]
Explanation
A. Digoxin typically decreases the heart rate by increasing vagal tone and reducing conduction through the atrioventricular node.
B. Digoxin may have minimal effects on blood pressure, primarily by improving cardiac output in patients with heart failure, but its primary action is on cardiac contractility and rhythm.
C. Digoxin has a negative chronotropic effect, meaning it slows the heart rate by increasing parasympathetic tone and decreasing conduction through the atrioventricular node.
D. Digoxin has a positive inotropic effect, meaning it increases the force of cardiac contractions, which can be beneficial in patients with heart failure.
E. Digoxin can suppress ectopic beats (abnormal heart rhythms originating outside the sinoatrial node) by slowing conduction through the atrioventricular node and enhancing vagal tone
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