What is the Latin name for the Astragalus species most commonly used in herbal medicine?
- Astragalus membranaceus
- Astragalus canadensis
- Astragalus gummifer
- Astragalus cicer
Correct Answer: Astragalus membranaceus
Correct Answer Explanation: Astragalus membranaceus is the most commonly used species in herbal medicine and is the one often referenced in research studies. The other options are different species of Astragalus.
Which part of the Astragalus plant is used for medicinal purposes?
- Leaves
- Flowers
- Stems
- Roots
Correct Answer: Roots
Correct Answer Explanation: The roots of the Astragalus plant are the part used for medicinal purposes. They are often dried and used in decoctions, tinctures, and supplements.
Astragalus has been used traditionally in what kind of medicine?
- Traditional Chinese Medicine
- Ayurvedic Medicine
- Traditional Korean Medicine
- All of the above
Correct Answer: All of the above
Correct Answer Explanation: Astragalus has a long history of use in various traditional medicine systems, including Traditional Chinese Medicine, Ayurvedic Medicine, and Traditional Korean Medicine. It is often used for its purported immune-boosting and anti-inflammatory properties.
Which of the following conditions is Astragalus NOT commonly promoted for?
- Upper respiratory infections
- Allergic rhinitis
- Asthma
- Arthritis
Correct Answer: Arthritis
Correct Answer Explanation: While Astragalus is promoted for its purported benefits for a variety of health conditions, it’s not typically touted as a treatment for arthritis. Its use for conditions like upper respiratory infections, allergic rhinitis, and asthma is more common.
How is Astragalus typically used topically?
- Applied to the skin to reduce inflammation
- Soaked in a bath to relieve muscle soreness
- Used in a foot soak to promote relaxation
- All of the above
Correct Answer: Applied to the skin to reduce inflammation
Correct Answer Explanation: Topical application of Astragalus is primarily promoted for its potential to improve blood flow and speed wound healing. It’s often applied directly to the skin.
What is the primary concern regarding the quality of research on Astragalus’s health benefits?
- There is a lack of research on Astragalus.
- The research that exists is of low quality.
- The research is biased towards its effectiveness.
- There is no research on Astragalus in humans.
Correct Answer: The research that exists is of low quality.
Correct Answer Explanation: While some research has been done on Astragalus, it’s generally considered to be of low quality. This means that the studies may not be reliable enough to draw firm conclusions about its effectiveness.
Which of these conditions was Astragalus specifically studied for in children?
- Upper respiratory tract infections
- Asthma
- Chronic fatigue syndrome
- Allergic rhinitis
Correct Answer: Upper respiratory tract infections
Correct Answer Explanation: A research review in 2013 specifically looked at Astragalus’s potential effect on upper respiratory tract infections in children with nephrotic syndrome.
Astragalus has been studied in combination with what other treatment for upper respiratory infections in children?
- Antibiotics
- Antihistamines
- Prednisone
- Antiviral medications
Correct Answer: Prednisone
Correct Answer Explanation: The 2013 research review studied Astragalus in combination with prednisone, a common medication used to treat nephrotic syndrome.
A small trial in 2009 studied the effect of Astragalus in people with what condition?
- Advanced lung cancer
- Chronic kidney disease
- Chronic fatigue syndrome
- Heart disease
Correct Answer: Advanced lung cancer
Correct Answer Explanation: A small study in 2009, partially funded by the National Center for Complementary and Integrative Health (NCCIH), evaluated the effect of an Astragalus-based herbal formula on people with advanced lung cancer. It did not find that it extended their lifespan.
Which of the following is NOT a potential side effect of oral Astragalus use?
- Rash
- Itching
- Nausea
- Stomach discomfort
Correct Answer: Nausea
Correct Answer Explanation: While Astragalus is generally considered safe, possible side effects include rash, itching, nasal symptoms, and stomach discomfort. Nausea is not a commonly reported side effect.
Astragalus may interact with what kind of medications?
- Medications that suppress the immune system
- Pain relievers
- Antibiotics
- Antidepressants
Correct Answer: Medications that suppress the immune system
Correct Answer Explanation: Astragalus may interact with medications that suppress the immune system, as it’s thought to have immune-boosting effects.
What is the main concern regarding some Astragalus species growing in the United States?
- They are known to be toxic to humans.
- They can cause allergies in people with sensitivities.
- They contain toxins that can harm livestock.
- They are not effective for medicinal purposes.
Correct Answer: They contain toxins that can harm livestock.
Correct Answer Explanation: Some species of Astragalus found in the United States can contain toxins like swainsonine and selenium, which can be harmful to livestock. These are generally not the species used in supplements.
What is “locoweed poisoning” associated with?
- Certain species of Astragalus
- Overconsumption of Astragalus
- Allergic reactions to Astragalus
- Contamination of Astragalus
Correct Answer: Certain species of Astragalus
Correct Answer Explanation: “Locoweed poisoning” is a condition in livestock caused by ingesting certain species of Astragalus that contain toxins like swainsonine.
What is the primary concern regarding the use of Astragalus during pregnancy?
- There is no research on Astragalus during pregnancy.
- There is evidence that Astragalus may be harmful to the fetus.
- Astragalus may cause complications in labor.
- Astragalus is known to cause birth defects.
Correct Answer: There is evidence that Astragalus may be harmful to the fetus.
Correct Answer Explanation: While research is limited, some studies in animals suggest that Astragalus may be harmful to the mother and fetus during pregnancy.
What is the recommended advice for individuals considering using Astragalus for health purposes?
- Consult with a health care provider before use.
- Start with a high dose to experience benefits quickly.
- Use only Astragalus species that are safe for humans.
- Avoid Astragalus if you have any health conditions.
Correct Answer: Consult with a health care provider before use.
Correct Answer Explanation: It’s always important to talk to your health care provider before starting any new supplement, including Astragalus, especially if you have any health conditions or are pregnant or breastfeeding. They can help you make an informed decision about whether it’s right for you and recommend appropriate dosages.