When taking Digoxin, low levels of what can cause toxicity?

Correct Answer: A

Rationale: When taking Digoxin, low levels of potassium can cause toxicity because digoxin competes with potassium for binding sites on the sodium-potassium pump in cardiac cells. Low potassium levels can lead to increased binding of digoxin to the pump, resulting in increased intracellular calcium levels and an increased risk of digoxin toxicity, including arrhythmias. Therefore, monitoring and maintaining adequate potassium levels are crucial in patients taking digoxin to prevent toxicity.

Correct Answer: B

Rationale: The high alert nursing implication for Morphine is to assess the level of consciousness, blood pressure, pulse, and respiration. Morphine is a potent opioid analgesic that can cause respiratory depression, sedation, and hypotension as side effects. Monitoring the patient's vital signs and neurological status is crucial to detect any signs of overdose or adverse reactions promptly. Maintaining vigilant observation of these parameters can help prevent serious complications and ensure the safe administration of Morphine.

Correct Answer: C

Rationale: The fundamental action of vaccines is prophylaxis, which means the prevention of disease. Vaccines are designed to stimulate the body's immune system to recognize and fight specific pathogens before they cause infection or illness. By introducing a weakened or inactivated form of the pathogen to the body, vaccines trigger an immune response and teach the immune system how to recognize and destroy the pathogen in the future. Through prophylaxis, vaccines help protect individuals from getting sick with certain diseases.

Correct Answer: D

Rationale: Peripheral mediators of pain can sensitize nociceptors and contribute to the perception of pain. Histamine, bradykinin, and prostaglandins are all examples of peripheral mediators that can induce pain. Amino acids, on the other hand, are not typically considered peripheral mediators of pain. While amino acids are important for many physiological processes in the body, they are not generally associated with the direct modulation of pain signaling pathways in the periphery.

Correct Answer: D

Rationale: Coated aspirin refers to enteric-coated aspirin, which is a type of aspirin that has a special coating designed to help protect the stomach lining and reduce gastrointestinal upset. Unlike regular aspirin, enteric-coated aspirin is less likely to cause irritation to the stomach and therefore may be a better option for patients experiencing gastrointestinal issues. Switching to coated aspirin can help alleviate the patient's symptoms while still providing the antiplatelet benefits needed for secondary prevention of myocardial infarction. It is important for the nurse to communicate with the provider to discuss this alternative option and ensure the patient's safety and well-being.