(2) Closed abdominal injury with signs and symptoms of hypovolemic
shock present with systolic is less than 90 mmHg.
(3) Pelvic fracture(s) with signs and symptoms of hypovolemic shock
present and with systolic less than 90 mmHg.
b. Do not apply the MAST if one of the following conditions (contraindications)
(1) The casualty has psychogenic, anaphylactic, cardiogenic, or septic
shock. (The MAST is used only with hypovolemic shock.)
(2) The casualty has an injury that will be aggravated by applying the
MAST. (For example, you should not apply the MAST to a casualty with an impaled
object protruding from a wound in the leg or intestine protruding from an open
abdominal wound unless you are ordered to do so by a physician.)
The casualty has congestive heart failure.
c. Do not apply the MAST to a casualty with one of the following conditions
unless you are directed to do so by a physician.
The casualty has a severe head injury.
The casualty has an open chest wound or bleeding into the chest
The casualty has other trauma above the level of the MAST
The casualty is in heart failure with pulmonary edema.
The casualty may have an aortic aneurysm.
PLACE THE MEDICAL ANTI-SHOCK TROUSERS ON THE CASUALTY
If use of the MAST is appropriate, apply the device and prepare to inflate the
There are several different MAST models. Follow the manufacturer's
instructions for applying, inflating, deflating and maintaining the MAST. You
should be able to open the kit, position the MAST, and inflate the legs
(paragraphs 7-6 and 7-7) within 90 seconds.