Answer to Question 1
A
Milk thistle has been shown to protect the liver after exposure to hepatotoxins such as acetaminophen, ethanol, and halothane. The other supplements listed do not have this effect.
Answer to Question 2
A
Although the traditional recommendation is for patients to take up to 3 nitroglycerin doses over 15 minutes before accessing emergency medical services (EMS), more recent guidelines suggest an alternative strategy to reduce delays in emergency care. These include instructions to call 9-1-1 immediately if pain persists for 5 minutes after the first dose. Aspirin is recommended when the patient is being transported to emergency care and is not recommended as an adjunct to nitroglycerin with each episode of chest pain. The three doses of nitroglycerin are given 5 minutes apart over 15 minutes.