Ascension Saint Thomas Urges Middle Tennesseans to Take Heat Safety Seriously as Temperatures Climb

With dangerous heat and humidity expected to settle across Middle Tennessee through early next week, Ascension Saint Thomas is urging residents to take precautions against heat-related illnesses and recognize the warning signs before a medical emergency occurs.

Forecasters expect high temperatures from Sunday through Tuesday to reach the mid to upper 90s. Combined with high humidity, heat index values are expected to range from 100 to 105 degrees, with some areas potentially exceeding 105 degrees.

While many people look forward to summer activities, prolonged exposure to extreme heat can quickly become dangerous, especially for older adults, young children, outdoor workers and people with chronic health conditions.

Heat-related illnesses can happen faster than many people realize," said Dr. Brian Wilcox, chief clinical officer for Ascension Saint Thomas. "When temperatures rise, your body has to work harder to stay cool. Without enough fluids and rest, what starts as simple dehydration can quickly become heat exhaustion or even heat stroke."

Heat stroke is a life-threatening medical emergency that occurs when the body's temperature rises rapidly and can no longer cool itself effectively.

"Think of your body like a car engine," Wilcox said. "If the cooling system fails, the engine overheats. The same thing can happen to the human body during extreme heat. Once that process begins, it can escalate very quickly."

Know the Warning Signs

Signs of dehydration may include:

• Increased thirst
• Dry mouth
• Headache
• Fatigue
• Dizziness
• Dark-colored urine

Signs of heat exhaustion may include:

• Heavy sweating
• Weakness
• Nausea or vomiting
• Muscle cramps
• Lightheadedness
• Cool, clammy skin

Signs of heat stroke require immediate medical attention and may include:

• Body temperature above 103 degrees
• Confusion or altered mental status
• Slurred speech
• Loss of consciousness
• Hot, red skin
• Rapid pulse

"If someone becomes confused, loses consciousness or stops sweating despite the heat, call 911 immediately," Wilcox said. "Heat stroke is a medical emergency and delaying treatment can have serious consequences."

Simple Steps Can Prevent Serious Illness

Dr. Wilcox recommends the following precautions when temperatures climb:

• Drink water regularly, even if you do not feel thirsty.
• Limit outdoor activities during the hottest part of the day, typically between 10 a.m. and 4 p.m.
• Wear lightweight, loose-fitting and light-colored clothing.
• Take frequent breaks in air-conditioned buildings or shaded areas.
• Never leave children, older adults or pets in a parked vehicle.
• Check on family members, neighbors and friends who may be vulnerable to heat-related illnesses.
• Avoid excessive alcohol and sugary drinks, which can contribute to dehydration.

"The weather forecast is giving us advance warning," Wilcox said. "Now is the time to prepare by limiting strenuous outdoor activity during peak heat, checking on vulnerable family members and making a plan to stay cool. Taking a few precautions today can prevent a trip to the emergency room tomorrow."