Please help me understand beta-blockers and this nursing diagnosis? -

I have this patient with Cardiac Dysrythmias. (Atril Fib) This means DECREASED cardiac output...because the blood cant be pumped to then body effeciently. So they are giving him a Beta Blocker to Lower his blood pressure. His blood pressure 180/110. But if you lower the B/P with a beta blocker....then isnt that decreasing the output even more??? how can i write this med as one of the interventions..if its not helping. Please help me understand thisss!!! How could someone with hypertension have decreased output!!?? im soo losttt. can a beta blocker slow the heart...which then increases cardiac output?? How will the BP play into this!?

A beta blocker is a medication that slows the heart rate and reduces the force with which the heart muscle contracts, thereby lowering blood pressure. Beta blockers do this by blocking beta-adrenergic receptors, which prevents adrenaline (epinephrine) from stimulating these receptors.2

YOU are supposedly the nurse. Look it up. I hope you are not doing your job based on answers you get off of this web site for God s sake! Go to a reputable web site. Jeez.

most patienst with cardiac dysythmia has irregular and fast heart beat. betablockers doesn t just lower the blood pressure but also slows down the pulse/heart rate. It aids in manitaning the heartrate or heart beat of someone with atrial fib