Cardiac patient in an ambulance. Paramedic administering a glyceryl trinitrate (GTN, nitroglycerin) spray to a 50-year-old cardiac patient inside an a

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Cardiac patient in an ambulance. Paramedic administering a glyceryl trinitrate (GTN, nitroglycerin) spray to a 50-year-old cardiac patient inside an ambulance. GTN is a vasodilator (blood vessel widening) drug used to treat angina pectoris, pain due to the constriction of the cardiac arteries, and hypertension (high blood pressure).

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Size: 3543px × 5315px
Photo credit: © THOMAS FREDBERG/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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