The Emergency Medical Technician (EMT) credential has the following other requirements: 1  Candidates must be 18 years of age or older. 2  Candidate must have a current CPR-BLS for Healthcare Providers or equivalent credential.
Swelling in the extremities is often caused by idiopathic edema or excess salt consumption. Swollen hands and feet are commonly caused by idiopathic edema, which is usually not serious. Swollen hands may be a sign of heart disease. Prolonged periods of physical inactivity may cause swollen hands and feet. Reducing salt consumption, for example, eliminating salty snacks can aleviate swelling.
Some of the common causes of having blisters on hands can include: Dyshidrosis. This is a type of eczema, which is a skin condition, will frequently cause multiple blisters on hands that can cause pain and itch at the same time. When these blisters break open they can be prone to developing an infection.