Related Experiment Video
Updated: Dec 26, 2025

Training Rats to Voluntarily Dive Underwater: Investigations of the Mammalian Diving Response
Published on: November 12, 2014
Diving with hypertension and antihypertensive drugs
Peter E Westerweel1,2,3, Rienk Rienks2,4,5,6, Ahmed Sakr7
1Department of Internal Medicine, Albert Schweitzer Hospital, Dordrecht, the Netherlands.
Hypertension is common in scuba divers. This review covers risks of diving with high blood pressure and its medications, offering guidance for physicians on diver fitness and safe treatments.
Area of Science:
- Cardiovascular Physiology
- Diving Medicine
- Sports Medicine
Background:
- Hypertension is highly prevalent among scuba divers.
- Many divers have high blood pressure or use antihypertensive medications.
- This presents unique challenges for diving safety and medical clearance.
Purpose of the Study:
- To review the risks associated with scuba diving in hypertensive individuals.
- To examine the implications of antihypertensive drug use during diving.
- To provide guidelines for assessing fitness to dive and managing treatment.
Main Methods:
- Literature review of available scientific articles.
- Analysis of risks related to hypertension and diving.
- Development of recommendations for diving physicians.
Main Results:
- Diving with hypertension carries potential risks.
- Certain antihypertensive drugs may be compatible with diving.
- Careful patient selection and management are crucial.
Conclusions:
- Physicians need clear guidelines for evaluating hypertensive divers.
- Optimizing antihypertensive treatment can enable safe diving for selected individuals.
- Further research may refine recommendations for this population.
Related Concept Videos
Antihypertensive Drugs: Action of Diuretics
Hyperpnea and Hyperventilation
Antihypertensive Drugs: Vasodilators
Special considerations while measuring blood pressure
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
Measurement of Blood Pressure
Alterations in Blood Pressure
Hypertension (High blood pressure)
Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart...

