he nurse is preparing to administer digoxin (Lanoxin) to a client experiencing atrial fibrillation. Which of the following electrolyte imbalances would the nurse assess to reduce the incidence of toxicity with digoxin (Lanoxin)?
hypokalemia
hyperkalemia
hypocalcemia
hypernatremia
The Correct Answer is A
A) Hypokalemia: Hypokalemia, or low potassium levels, significantly increases the risk of digoxin toxicity. Since digoxin competes with potassium for binding at the sodium-potassium ATPase site in the heart, low potassium levels can lead to increased digoxin effects and toxicity. Therefore, it is crucial to monitor potassium levels and correct any deficiencies before administering digoxin.
B) Hyperkalemia: While hyperkalemia is a serious concern and can also affect digoxin therapy, it usually results in decreased effectiveness of digoxin rather than increasing toxicity. Elevated potassium levels can diminish the drug's positive inotropic effect.
C) Hypocalcemia: Although calcium levels can influence cardiac function, hypocalcemia is not directly related to digoxin toxicity. Monitoring calcium is important for overall cardiac health, but it is not the primary focus when assessing the risk for digoxin toxicity.
D) Hypernatremia: Elevated sodium levels do not have a direct impact on the efficacy or toxicity of digoxin. While sodium levels are essential to monitor for overall health, they are not critical in the context of digoxin administration and toxicity risk.
Free Nursing Test Bank
- Free Pharmacology Quiz 1
- Free Medical-Surgical Quiz 2
- Free Fundamentals Quiz 3
- Free Maternal-Newborn Quiz 4
- Free Anatomy and Physiology Quiz 5
- Free Obstetrics and Pediatrics Quiz 6
- Free Fluid and Electrolytes Quiz 7
- Free Community Health Quiz 8
- Free Promoting Health across the Lifespan Quiz 9
- Free Multidimensional Care Quiz 10
View Related questions
Correct Answer is A
Explanation
A) Inhibits platelet aggregation: The primary benefit of aspirin following a myocardial infarction (MI) is its ability to inhibit platelet aggregation. By preventing platelets from clumping together, aspirin reduces the risk of further clot formation, which is critical in preventing additional cardiac events and improving overall cardiovascular outcomes.
B) Anti-inflammatory properties: While aspirin does have anti-inflammatory effects, this is not the primary reason it is prescribed after an MI. The focus in the post-MI setting is on its role in preventing clot formation rather than addressing inflammation.
C) Antiemetic: Aspirin is not an antiemetic and does not alleviate nausea or vomiting. Clients experiencing gastrointestinal issues or nausea would require different medications for those symptoms.
D) Anti-pyretic: Although aspirin can reduce fever, this effect is not the primary concern in the post-MI setting. The immediate goal is to improve heart health and prevent further thrombotic events, making platelet inhibition the most relevant benefit.
Correct Answer is ["A","C","D"]
Explanation
A) Masking of hypoglycemia: Propranolol can mask the symptoms of hypoglycemia, such as tachycardia, which is important for clients with diabetes to be aware of. This means that while they may have low blood sugar, they might not experience the typical warning signs due to the medication's effects on the autonomic nervous system.
B) Tachycardia: Propranolol is a beta-blocker that is used to reduce heart rate and blood pressure. Therefore, tachycardia is not a side effect associated with this medication; in fact, it generally works to prevent this condition.
C) Bradycardia: Bradycardia, or a slow heart rate, is a common side effect of propranolol due to its action on beta-adrenergic receptors. Clients should be educated about monitoring their heart rate and reporting any significant drops.
D) Orthostatic Hypotension: This is a potential side effect of propranolol, especially when starting the medication or increasing the dose. Clients should be advised to rise slowly from sitting or lying positions to minimize the risk of dizziness or fainting.
E) Hypertension: Propranolol is prescribed to manage hypertension, so it should not be expected as a side effect. In fact, it is intended to lower blood pressure, and clients should be educated that they should not experience increased hypertension while taking this medication.