A patient taking the blood thinner warfarin tells a nurse that he regularly takes herbal supplements along with his vitamins. The nurse cautions the patient about the possible negative interactions of warfarin with
1. Saint-John's-wort.
2. Feverfew.
3. Echinacea.
4. All of the above.
Question 2
A middle-aged female patient taking digoxin for a heart condition is complaining about the effectiveness of her medication.
Upon explaining to the nurse that she takes no other medications but regularly takes herbal supplements, the nurse suspects the problem may be the herb
1. Ginger.
2. Saw palmetto.
3. Ginseng.
4. Peppermint oil.