Need Advice on Metoprolol

Specialties Cardiac

Published

So here's what happened last night to my patient....

I work night shift so I came on at 1900 and received report on this patient. She was in for s/p fall d/t hypotension and afib with RVR. The nurse replied that they were giving amiodarone and metoprolol po. Pt's HR 120s and BP 130's systolic. Denies any chest pain.

I go into the room around 2000 and check her BP and now it's in the 80's systolic. (side note, RN said she gave Lasix earlier per MD) I informed the MD and she ordered to give a bolus. Bolus given and pressure came back up high 120's systolic. Around 2200 I administer her night meds which consist of Metoprolol 50 mg PO. With her current pressure back up and her A fib HR 120s I feel it's safe to give.

2220 I recheck her BP and she's down in the 80s. MD aware. MD orders another bolus. Pt does respond to the fluids but pressure at 2300 80's-70s. Now she converted to SR 90s. Then she started to brady into the high 50s. Pt alert. Positive pulses. MD orders ANOTHER bolus. Pt doesn't respond to...End up starting her on a dopamine gtt.

Come to find out, MD wrote an incident report on me saying that since I gave the metoprolol, that caused her to become hypotensive and brady. After the fact that she said that she agreed to give the metoprolol saying that it was indicated at the time.

What is your advice? Do you think that the metoprolol would have worked so quickly?? PO? I feel responsible in a way for what happened. I'm willing to learn from my mistakes. Just feel thrown under the bus abit.

On a sidenote....pt is doing fine. This AM, her BP 120s but she converted back to A fib c RVR.......

Any suggestions would be appreciated.

Specializes in Emergency, Telemetry, Transplant.

Also, glucagon can be used with an overdose of beta blockers. There are some issues with this (short half life of glucagon vs. a long half life for the beta blockers). Not sure of any pro-arrythmic issues here.

Specializes in ICU.
It seems to me this pt had issues..the Lasix could have initially lowered her pressure, I would have questioned the doctor about a dosage change in the lopressor before giving 50mg since the pt had been bolused. Then documented the doctor was notified and what the outcome was of that notification. Seems this pt needed cardizem...was the dopamine started at a renal dose or cardiac dose...you don't want to keep throwing fluid at someone without renal function....not sure why any doctor wouldnt have lowered the dose knowing the pt was in a fib with rvr and was on Lasix and had been admitted s/p fall......and for hypotension.......then she writes you up ???? Hello ????

Its my understanding that "renal dose dopamine" has gone the way of the square tire

Specializes in ICU.
Also, glucagon can be used with an overdose of beta blockers. There are some issues with this (short half life of glucagon vs. a long half life for the beta blockers). Not sure of any pro-arrythmic issues here.

You can do a drip too. I did one just the other day. Although i dont really think it was truely necessary as the patient was barely symptomatic, but the doc wanted it, then pharmacy asked if it was really necessary due to somewhat of a shortage in house.

Specializes in GICU, PICU, CSICU, SICU.
Also, glucagon can be used with an overdose of beta blockers. There are some issues with this (short half life of glucagon vs. a long half life for the beta blockers). Not sure of any pro-arrythmic issues here.

Yeah absolutely right I forgot about glucagon for a second because I think we haven't used it in ages ^^

Specializes in Emergency, Telemetry, Transplant.
Yeah absolutely right I forgot about glucagon for a second because I think we haven't used it in ages ^^

Kinda interesting you should mention this. We just used it last week. Of course I was that one asking "why are we giving glucagon?" A wiser nurse than I told me why...and it worked.

PSU_213

Do you mind to explain to me why? This is interesting....

Specializes in ICU.
PSU_213

Do you mind to explain to me why? This is interesting....

Google is your friend. Search "glucagon antidote beta blocker", and you'll find neat stuff like:

http://curriculum.toxicology.wikispaces.net/3.4.3.4.2+Beta-blockers#Beta-blockers-TREATMENT-Antidotes

http://drofrx.com/Notes_files/Glucagon%20for%20B-Blocker%20Overdose.pdf

Enjoy!

Specializes in ICU-my whole life!!.

I won't repeat what everyone else has said in here. I just want to add that nothing ****** me off more than a POS MD that is quick to write and incident report on a nurse. I would confront them.

i think more information of the patient condition is needed here (like who wrote the incident report a medical resident or a cardiologist:uhoh3:)

before we ride away on the 'beta blocker overdose train'. sounds like something funky was going on beyond beta blocker overdosing. how much amiodarone did she get? and tell me was it IV? also the fact that she got not one but 3 fluid boluses after the MD ordered lasix brings me to my next rant---was she "wet, hypotensive with fast HR"? then why drop her BP AFTER lasix dose.. was she "dry hypotensive with fast HR" then WHY lasix and the fluid bolus shoulda worked on that bp and stayed that way..-did the MD actually go in to see the patient? cuzz i know it's not the 'in ' thing to do anymore what with the advent of IPhones facebooks and algorithms why go an clinically eyeball your patient heaven forbid. and why amio load this person was Afib new for her? like really new?

i am hard pressed to believe that this person required "renal dose dopamine" from one dose of metoprolol? i understand 50 is not the dose to start with but rate control could have helped increas her CO. i take it this was a new drug for her? maybe start at a quarter of that dose then 'doctor'..?. i just think there were other factors at play here than a metoprolol tablet but i know anything can happen... the dopamine was for her bradycardia according to ACLS and not "renal dosing" i would imagine. :twocents::confused: can i just add in here--anyone else noticing a trend where doctors must be tired of being 'doctors' cuzz they rely way too much on nurses to play doctor here? especially "doctors in training" ?

Specializes in GICU, PICU, CSICU, SICU.

It's because we are much better at the doctoring most of the time :)

Specializes in Post Anesthesia.
.....

As beneficial as beta blockers are in reducing the oxygen consumption of the heart. When the dosage is too high for a particular patient/situation the negative effects take over. ...

I've explained to several doctors- yes, reducing myocardial oxygen demand is a worthy goal, but asystole eliminates most myocardial oxygen demand but is not usually considered a theraputic outcome.

Specializes in TELE, ICU.

Yeah, Metoprolol is a very effective Beta blocker, and 50mg was a high dose for that poor hypotensive patient. Another drug to beware of giving to pateints with active hypotensive issues is Coreg. Cardizem drips merit attention as well b/c they will drop your pressure. Digoxin is a better choice because it doesn't affect the blood pressure, but will lower your heart rate. The M.D. should have known that.

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