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 ...
Overview. 1  Vasoconstrictor drugs cause contraction of muscle cells in the walls of blood vessels, narrowing their internal diameter and raising blood pressure. This effect makes these medications useful for the treatment of low blood pressure, typically in an intensive care or surgical setting. Less potent vasoconstrictors are used as nasal decongestants.