Definition. Methicillin-resistant Staphylococcus aureus (MRSA) infection is caused by a type of staph bacteria that's become resistant to many of the antibiotics used to treat ordinary staph infections.efinition. Methicillin-resistant Staphylococcus aureus (MRSA) infection is caused by a type of staph bacteria that's become resistant to many of the antibiotics used to treat ordinary staph infections.
Contraindications and Precautions: 1  Vasopressin is a potent vasoconstrictor and can cause cardiac ischemia, angina and bronchoconstriction. 2  Water intoxication can occur. 3  Extravasation of the drug can cause tissue necrosis. 4  If the patient has a known hypersensitivity to vasopressin, this drug is contraindicated. 5  The pregnancy category for 6  ... Use ...
(Coronary) endogenous vasodilator substances. prevent the heart rate from becoming too rapid during increased sympathetic nervous system stimulation of the heart. Remember, as hr increases, the ventricle has less time to fill so cardiac output decreases.