When an East County afternoon turns dangerously hot, dizziness, nausea and a pounding headache can come on quickly. This guide to heat exhaustion treatment in El Cajon explains how to tell heat exhaustion from heat stroke, when to call 911, when a walk-in visit makes sense, and how IV fluids help when drinking water is not enough.
Why El Cajon Heat Hits Harder Than the Coast
Inland East County often runs much hotter than the coast. The County of San Diego explains that the National Weather Service sets separate heat alert thresholds for the county's coastal, valley, mountain and desert zones, so the valleys around Mollison Avenue can be under a heat warning while the beaches have only an advisory.
A Heat Advisory means dangerous heat below warning level. An Extreme Heat Warning means extremely dangerous heat is expected or already happening. The CDC notes that, apart from the weather and the intensity of exercise, dehydration is the most important factor that sets people up for heat illness.
Heat Cramps, Heat Exhaustion and Heat Stroke: Know the Difference
Heat illness tends to climb a ladder, and it is easiest to reverse early. The CDC's National Institute for Occupational Safety and Health (NIOSH) and MedlinePlus describe three main rungs:
- Heat cramps: painful spasms in the legs, arms or abdomen, often with heavy sweating and thirst. Rest, shade and fluids with electrolytes usually help.
- Heat exhaustion: headache, nausea or vomiting, dizziness, weakness, irritability, heavy sweating, severe thirst, cool and moist skin, dark urine, and a fast, weak pulse.
- Heat stroke: the body can no longer control its temperature. Signs include confusion, slurred speech, seizures, loss of consciousness and a temperature above 104°F. Skin may be hot and dry or still sweating heavily.
MedlinePlus warns that untreated heat exhaustion can turn into heat stroke. Outdoor workers should also know the warning sign of rhabdomyolysis, a breakdown of muscle tissue: muscle pain with dark, tea- or cola-colored urine after hard work in the heat. NIOSH advises stopping activity and getting immediate care at the nearest medical facility.
When to Call 911 Instead of Driving In
Heat stroke is a medical emergency. Do not drive the person to urgent care, and do not wait it out. MedlinePlus advises calling 911 right away if someone who has been in the heat:
- Is confused, slurring words, acting out of character or hard to wake
- Faints or loses consciousness
- Has a seizure
- Has a fever above 102°F
- Has a rapid pulse or rapid breathing along with other heat symptoms
- Is getting worse, or not improving, despite cooling and fluids
While you wait, NIOSH recommends moving the person somewhere cool and shaded, removing outer clothing and cooling them fast with cold water, an ice bath, or cold wet cloths or ice on the head, neck, armpits and groin. MedlinePlus advises against fever medicines such as aspirin or acetaminophen, and against giving anything by mouth to someone who is vomiting or not fully alert. OSHA's first aid guidance sums it up: when in doubt, cool the person and call 911.
Heat Exhaustion Treatment in El Cajon: When a Same-Day Visit Makes Sense
Most heat exhaustion improves with rest in a cool place and fluids containing salt and sugar, such as a sports drink, or water with a salty snack, according to the CDC. NIOSH first aid guidance for heat exhaustion also calls for a medical evaluation. A walk-in visit fits when the person is alert, speaking normally and has no racing pulse or fast breathing, but:
- Cannot keep fluids down because of nausea or vomiting
- Still feels dizzy, weak or lightheaded after resting and cooling off
- Has dark urine or is barely urinating despite drinking
- Has cramps that are severe or keep coming back
- Has heat symptoms and is an older adult, has heart or kidney disease, or takes blood pressure medicine or water pills (diuretics)
CDC guidance for clinicians notes that diuretics can cause dehydration and electrolyte imbalance, and that common blood pressure medicines can lower blood pressure further, reduce sweating or blunt thirst. Bring your medication list, and do not stop a prescription without asking a clinician.
At Palm Urgent Care in El Cajon, a clinician can check your vital signs, look for signs of dehydration and order lab testing when needed. Unsure where to go? Read our guide to urgent care vs. the emergency room.
How IV Fluids Help With Heat-Related Dehydration
When vomiting or heavy fluid loss makes drinking hard, IV (intravenous) fluids deliver water and electrolytes directly into a vein, bypassing an unsettled stomach. MedlinePlus notes that more severe dehydration or a heat emergency may require a hospital stay and fluids given through a vein. A rapid heartbeat, rapid breathing, confusion or fainting after heat exposure means calling 911, not driving in.
At our El Cajon clinic, IV fluids are an option for mild to moderate dehydration in a person who is alert. If you can drink and keep fluids down, oral rehydration usually works. A clinician weighs your symptoms, history and medications, decides which fits, and sends you to emergency care if anything points to heat stroke or severe dehydration.
Elective wellness hydration is a separate service, covered in our post on IV therapy benefits for hydration and wellness.
Cool Zones, Hydration and Checking on Older Neighbors
On advisory days:
- Drink before you feel thirsty. The CDC advises older adults to drink more water than usual and not wait for thirst. If a doctor limits fluids or prescribes water pills, ask how much to drink in hot weather.
- Skip alcohol, caffeine and salt tablets once you are overheated, as MedlinePlus advises.
- Find real air conditioning. The CDC cautions that fans should not be the main way to cool off in extreme heat. The County of San Diego's Cool Zones are free, air-conditioned places to stay cool when it is very hot. Sites and hours change, so check the County's current Cool Zone site list or contact 211 San Diego, a free, confidential service available 24 hours.
- Check on older neighbors and relatives. During heat waves, the CDC recommends checking on older adults at least twice a day to see whether they are drinking enough water, have air conditioning, know how to keep cool and show any signs of heat stress.
El Cajon's strength is its close-knit neighborhoods, from longtime East County families to the city's large Arabic-speaking and Chaldean community. A call to an older neighbor, a reminder in the family group chat or a ride to a cooler place can keep a hot afternoon from becoming an emergency.
Frequently Asked Questions
What is the difference between heat exhaustion and heat stroke?
Heat exhaustion brings heavy sweating, headache, nausea, dizziness and weakness, and usually improves with cooling and fluids. In heat stroke the body can no longer control its temperature, causing confusion, seizures or fainting. It is an emergency: call 911.
Can urgent care give IV fluids for dehydration?
Palm Urgent Care in El Cajon offers IV therapy for mild to moderate dehydration in a person who is alert, when a clinician decides IV fluids fit better than oral rehydration. Confusion, fainting, a rapid pulse, rapid breathing or other signs of heat stroke call for 911 instead.
When should I see a doctor for heat exhaustion?
Get seen the same day if you cannot keep fluids down, stay dizzy or weak after cooling off, or have heat symptoms and take water pills or blood pressure medicine. Call 911 for confusion, fainting, seizures, or a rapid pulse or rapid breathing along with other heat symptoms.
What should you drink for heat exhaustion?
Take frequent sips of cool water, a sports drink with salt and sugar, or water with a salty snack. Avoid alcohol, caffeine and salt tablets, and give nothing by mouth to someone who is vomiting or not fully alert.
Where can I cool off in El Cajon during a heat wave?
The County of San Diego's Cool Zones are free, air-conditioned places to stay cool when it is very hot. Sites and hours change, so check the County's current Cool Zone site list or contact 211 San Diego.
If heat symptoms are not severe enough for 911 but are not improving at home, come in for heat exhaustion treatment in El Cajon at Palm Urgent Care, 505 N Mollison Ave, Suite 201. Check the location page for current hours and directions.
This article is for general information and is not a substitute for medical advice from a licensed clinician.