Ms. Quinn is admitted to the surgical intensive care unit after open heart surgery. The health care provider prescribes IV nitroglycerin, according to a hospital protocol for titration of the drug. Which factor would be most important when determining increases or decreases in the dose?a.Current blood pressure
b.Susceptibility of the client to intracranial pressure
c.Susceptibility of the client to renal insufficiency
d.Current respiratory rate

In the administration of Nitroglycerin to a patient who has had heart surgery, the dosage given to the patient is very important, as Nitroglycerin can cause vasodilation, that is, it can make the blood vessels of the heart to widen. This is as a result of the relaxation of the smooth muscle cells of the vessels' walls. Vasodilation lowers blood pressure.

As a result of the effect this drug on the heart,the blood pressure of the patient should be checked and monitored in order to determine the right dosage to administer. There is a limit to the dosage the patient can be given if blood pressure drops below a certain point.