Shortness of breath can be frightening. Most of the time, a heart or lung condition is the cause.
Tachycardia, a rapid heart rate, is caused by an abnormality in your heart's electrical impulses. Tachycardia can cause serious complications, including sudden cardiac arrest.
Tests and diagnosis
Find out what to expect during a needle biopsy.
Ultrasound imaging uses high-frequency sound waves to create images of structures in your body.
Treatments and drugs
Apr. 04, 2014
- Thyroid nodules. American Thyroid Association. http://thyroid.org/wp-content/uploads/patients/brochures/Nodules_brochure.pdf. Accessed Nov. 18, 2013.
- Ross DS. Diagnostic approach to and treatment of thyroid nodules. http://www.uptodate.com/home. Accessed Nov. 18, 2013.
- Ross DS. Overview of thyroid nodule formation. http://www.uptodate.com/home/. Accessed Nov. 18, 2013.
- Approach to the patient with a thyroid nodule. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merckmanuals.com/professional/endocrine_and_metabolic_disorders/thyroid_disorders/approach_to_the_patient_with_a_thyroid_nodule.html?qt=4.%09Approach to the patient with a thyroid nodule&alt=sh. Accessed Nov. 18, 2013.
- Cooper DS, et al. Revised American Thyroid Association management guidelines for patients with thyroid nodules and differentiated thyroid cancer. Thyroid. 2009;19:1167.
- Lalwani AK. Current Diagnosis & Treatment in Otolaryngology — Head & Neck Surgery. 3rd ed. New York, N.Y.: The McGraw-Hill Companies; 2012. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=39. Accessed Nov. 18, 2013.
- Doherty GM, ed. Current Diagnosis & Treatment: Surgery. 13th ed. New York, N.Y.: The McGraw-Hill Companies; 2010. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=23. Accessed Nov. 18, 2013.
- Ross DS. Cystic thyroid nodules. http://www.uptodate.com/home. Accessed Nov. 18, 2013.
- Goiter. American Thyroid Association. http://www.thyroid.org.php54-1.ord1-1.websitetestlink.com/what-is-a-goiter/. Accessed Nov. 18, 2013.
- Thyroid cancer. American Cancer Society. http://www.cancer.org/cancer/thyroidcancer/detailedguide/index. Accessed Nov. 18, 2013.
- Nippoldt TB (expert opinion). Mayo Clinic, Rochester, Minn. Nov. 19, 2013.
You Are ... The Campaign for Mayo Clinic
Mayo Clinic is a not-for-profit organization. Make a difference today.