The nurse is teaching a patient about digoxin. The nurse would evaluate the patient as understanding the teaching if the patient made which of these statements? Select all that apply.
The resting heart rate increases when digoxin is taken."
"Digoxin raises blood pressure."
"Digoxin slows the heart rate."
The force of heart contractions is increased with digoxin."
"Digoxin decreases ectopic beats."
Correct Answer : C,D,E
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
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Bright orange urine could be caused by certain medications, such as rifampicin and phenazopyridine or food dyes, such as those containing carotene.
B. This is because the obstruction of the bile duct leads to an accumulation of bilirubin in the blood, which is then excreted in the urine, giving it a darker color.
C. Pale yellow urine is indicative of normal urine coloration and is not specific to bile duct obstruction.
D. Red urine could indicate the presence of blood, which might suggest other conditions such as urinary tract infections or kidney stones, but not typically bile duct obstruction.
Correct Answer is D
Explanation
A. While patients receiving chemotherapy are at risk for infections due to immunosuppression, the risk of overwhelming infection, particularly from encapsulated bacteria, is higher in post-splenectomy patients due to impaired immune function without the spleen.
B. Patients with sickle cell anemia are at increased risk of infections, particularly from encapsulated bacteria, due to functional asplenia or hyposplenism, but the risk of overwhelming infection is highest in post-splenectomy patients.
C. Patients with multiple myeloma are immunocompromised and at increased risk of infections, but they do not have the same risk of overwhelming infection as post- splenectomy patients.
D. Post-splenectomy patients are at highest risk of overwhelming infection due to impaired immune function resulting from the absence of the spleen, which plays a crucial role in immune surveillance and defense against encapsulated bacteria.
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