Having high blood pressure puts you at increased risk whilst diving. It is a major risk factor for having a heart attack or a stroke, both of which could be fatal underwater. Over time, high blood pressure can damage the blood vessels in the body, and the heart muscle itself.
Can BP patients do scuba diving?
Fit for Diving
You’ll be passed as fit to dive as long as blood pressure is under control, and no main concerns with your overall health and no evidence of heart, kidney or eye damage are found. Your medical history will be discussed, and you may need to attend a sports diver medical with a specialist.
What medical conditions can stop you from scuba diving?
Medical conditions such as asthma, diabetes and many cardiac conditions were long considered absolute contraindications to scuba diving.
Does diving lower blood pressure?
Once you’re settled in, the water that’s lower than the human body temperature allows you to warm up throughout the dive. This warm-up reduces your heart rate and blood pressure.
Can I dive on blood pressure medication?
Most antihypertensive drugs are compatible with diving as long as side effects are minimal and your performance in the water is not significantly compromised. If you have a history of hypertension, have a doctor monitor possible associated damage to the heart and kidneys.
Can heart patients scuba dive?
In a well-controlled environment (warm water, no wind or current), an individual with coronary disease and good left ventricular function could dive safely with no more than 4 mets of energy expenditure (i.e. 8 mets peak capacity). Improving aerobic capacity after PCI or CABG is also essential to safe diving.
Does scuba diving affect your heart?
The physical work of diving contributes to the heart attack, as does the location where the cardiac event takes place. If you are on a beach or a dive boat when you have a heart attack, your chances of survival are lower than if you are in town around people.
When should you not dive?
Basic scuba diving safety is that your respiratory and circulatory systems must be in good working order. A person with heart trouble, a current cold or congestion, epilepsy, asthma, a severe medical problem should not dive. Another time not to dive is if your ears or nose are not clear.
Can you scuba dive if you are claustrophobic?
If diving with claustrophobia, be sure to avoid wrecks, caves, coral swim-throughs and instead, stay in open water. Immediately tell your instructor or buddy if you are uncomfortable. By notifying your instructor or buddy when you are uncomfortable, we can help prevent panic by maintaining contact and focus.
Who should not dive?
“If you can reach an exercise intensity of 13 METS (the exertion equivalent of running a 7.5-minute mile), your heart is strong enough for most any exertion,” he says. You also need to be symptom-free. If you have chest pain, lightheadedness or breathlessness during exertion, you should not be diving.
Can you scuba dive if you’ve had a stroke?
A stroke or heart attack underwater could be fatal, and for this reason, it may not be possible to return to diving.
Why does diving increase BP?
Diving-related risks in relation to hypertension
Peripheral vasoconstriction, particularly when diving in cold water conditions, which will exacerbate the central pooling of blood and thereby the increase in central blood pressure;[ 9] Exercise, which may temporarily increase arterial blood pressure substantially.