Dizziness has many possible causes. The cause of dizziness may be simple, or dizziness may be a sign of a more serious disorder.
Fatigue can signal many things. Here are some tips to help you decipher why you're wiped out and to regain your energy.
Most headaches aren't caused by a serious illness, but some could be a sign of a life-threatening condition.
How to recognize and provide first-aid treatment for heat exhaustion.
How to recognize and provide first-aid treatment for heatstroke.
Low blood pressure (hypotension) can be a sign of good health or of a life-threatening condition. Find out more about hypotension's causes and treatment options.
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.
Urinalysis can be used to assess your overall health, detect a wide range of disorders, or monitor a medical condition or treatment.
Nov. 25, 2014
- Heat injury and heat exhaustion. American Academy of Orthopaedic Surgeons. http://orthoinfo.aaos.org/topic.cfm?topic=A00319. Accessed Oct. 1, 2014.
- Extreme heat: A prevention guide to promote your personal health and safety. Centers for Disease Control and Prevention. http://www.bt.cdc.gov/disasters/extremeheat/heat_guide.asp. Accessed Oct. 1, 2014.
- Marx JA, et al. Rosen's Emergency Medicine: Concepts and Clinical Practice. 8th ed. Philadelphia, Pa.: Mosby Elsevier; 2014. http://www.clinicalkey.com. Accessed Oct. 1, 2014.
- Mechem CC. Severe nonexertional hyperthermia (classic heat stroke) in adults. http://www.uptodate.com/home. Accessed Oct. 8, 2014.
- Using the heat index: A guide for employers. U.S. Department of Labor, Occupational Safety and Health Administration. http://www.osha.gov/SLTC/heatillness/heat_index/index.html. Accessed Oct. 2, 2014.
- Dehydration and heat stroke. Johns Hopkins School of Medicine. http://www.hopkinsmedicine.org/healthlibrary/conditions/non-traumatic_emergencies/dehydration_and_heat_stroke_85,P00828/. Accessed Oct. 1, 2014.
- Frequently asked questions about extreme heat. Centers for Disease Control and Prevention. http://www.bt.cdc.gov/disasters/extremeheat/faq.asp. Accessed Oct. 1, 2014.
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