A nurse is assessing a client prior to administering atenolol. Which of the following findings should prompt the nurse to withhold the medication?
Blood pressure 160/94 mm Hg
Heart rate 46/min
Oxygen saturation 95%
Respiratory rate 18/min
The Correct Answer is B
Choice A reason: Blood pressure 160/94 mm Hg is not a reason to withhold atenolol, as it is a beta-blocker that lowers blood pressure and reduces the workload of the heart. Atenolol is indicated for hypertension, angina, and arrhythmias. The nurse should administer atenolol as prescribed, unless the blood pressure is too low (hypotension).
Choice B reason: Heart rate 46/min is a reason to withhold atenolol, as it is a sign of bradycardia (slow heart rate), which can be a side effect of atenolol. Atenolol can decrease the heart rate by blocking the beta-1 receptors in the heart. The nurse should withhold atenolol if the heart rate is below 60 beats per minute or above 100 beats per minute, and report the finding to the provider.
Choice C reason: Oxygen saturation 95% is not a reason to withhold atenolol, as it is a normal value that indicates adequate oxygenation of the blood. Atenolol does not affect the oxygen saturation or the respiratory function. The nurse should monitor the oxygen saturation regularly, and report any signs of hypoxia (low oxygen level).
Choice D reason: Respiratory rate 18/min is not a reason to withhold atenolol, as it is a normal value that indicates normal breathing. Atenolol does not affect the respiratory rate or the respiratory function. The nurse should monitor the respiratory rate regularly, and report any signs of dyspnea (difficulty breathing).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Ataxia is not a manifestation of digoxin toxicity, as it does not affect the coordination or balance of the client. Ataxia may be caused by other factors, such as cerebellar disorders, alcohol intoxication, or medication interactions.
Choice B reason: Anorexia is a manifestation of digoxin toxicity, as it affects the appetite and digestion of the client. Anorexia may be accompanied by nausea, vomiting, or abdominal pain, which are also signs of digoxin toxicity. Anorexia may lead to weight loss, dehydration, or electrolyte imbalance, which can worsen the condition of the client.
Choice C reason: Photosensitivity is not a manifestation of digoxin toxicity, as it does not affect the skin or the eyes of the client. Photosensitivity may be caused by other factors, such as sun exposure, allergies, or medication interactions.
Choice D reason: Jaundice is not a manifestation of digoxin toxicity, as it does not affect the liver or the bilirubin level of the client. Jaundice may be caused by other factors, such as liver disease, gallstones, or hemolysis.
Correct Answer is A
Explanation
Choice A reason: Lidocaine is an antiarrhythmic medication that stabilizes the cardiac membrane and suppresses abnormal electrical impulses in the heart. It is used to treat ventricular dysrhythmias, such as ventricular tachycardia and ventricular fibrillation, which can occur after a cardiac arrest.
Choice B reason: Lidocaine is not primarily used to relieve pain, although it has local anesthetic properties. It is not effective for chest pain caused by myocardial ischemia or infarction.
Choice C reason: Lidocaine does not dissolve blood clots, nor does it prevent their formation. It has no anticoagulant or thrombolytic effects.
Choice D reason: Lidocaine does not slow intestinal motility, nor does it affect the gastrointestinal system. It has no antispasmodic or antidiarrheal effects.
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