Dopamine & Dobutamine - with a Mnemonic - Cardiac Pharmacology (6)

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Dopamine and dobutamine are two positive inotropic medications that can increase cardiac contractility, and can be used to manage congestive heart failure.

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[riteshchaurasia]

9:53 case 2 sir u told dobutamine causes vasodilation so decrease in bpbut again in case 2 it causes increase in bp..how !?

[worcestershire]

Your videos are amazing, you are an EXCELLENT educator. I rate your content above Osmosis and many other learning tools. Thank you for your work sir!

[lanaali]

hey ! first of all love your content. so umm just a little misunderstanding i hope you get to see it, at the end of the video in your case #2; where the pt has CHF but no hypotention, you previously said that because dobutamine is a B2 agonist it causes vasodilation so as then hypotension, but you eventually said that we will use dobutamine as the answer of case #2 and that it can lead to ((hypertension)). could you please briefly explain that point.

thank you for your time c:

[physicsi]

'Whoever thought pharmacology is hard has never watched my channel ' best line☺️👍👌

[toniencheff]

I am becoming a better nurse because of you. Thank you

[ginamasters]

I thought I had it, but now I am confused by a few statements....DOPAmine increases BP. DoBUTAmine does not and causes vasodilation d/t activating B2 (At least that's what you were saying around 8:35 mark). THEN, toward the end, you said that dobutamine might even "RAISE BP." Could you explain how it could do both or was that in error? I would think that something that increases heart contractility but also vasodilates---would lead to increased HR and improve cardiac output, and decrease bp via lower pvr? Or, does it have different effects on different people? Maybe it's super late and I'm overthinking this too much. Thanks in advance for clarification!

[nimmir]

Could you please explain the 2nd case again where you said dobutamine should be used?:) Was a bit confusing?

[iAR]

Wait I didn't get Case 2 and the dobutamine effect there. You said it causes vasodilation which could lead to hypotension, but when you answered the question you said it might raise the blood pressure.

[samuelmacatangay]

i love you I spent so much time trying to understand this and you explained it in 10 min. bless your soul.

[robertmwangi]

Informative, fun, hilarious and captivating. Makes me want to watch again!!

[lanavoliladygagu]

so much dopamine after this video, I feel better than thank you a lot! D <3

[sadmanjaoad]

In case 2 example, you said dobutamine can raise the BP? I thought it reduces BP. And since BP is normal, and I want to maintain renal perfusion, can I consider dopamine an option in case 2 ? Or should I opt for dobutamin just because a raised BP from dopamine might worsen the HF?

[opiniontime]

At around 9 mins you are saying that Dobutamine will not increase BP it will decrease it BUT for case 2 answer you said we should give Dobutamine cuz it can not decrease BP

[RBall-tczn]

Hello. There is a lot of confusion about why Dopamine causes vasoconstriction and therefore increases BP (as opposed to dobutamine which lowers BP). I think this is because you didn't highlight a key difference : Dopamine also activates Alpha 1 and 2 receptors = vasoconstriction. Dobutamine does not do this, acting on the beta receptors to cause vasodilation.

[dingdong.]

Superbb!! Clinical becomes very easy with your videos!! Thanxx❤️

[riteshchaurasia]

6:38how does digoxin inhibiting na k pump increases contractility since due to inhibition na stays intracellular and due to its its greater intracellular presence how does secondary pump or calcium channel operate..since secondary or calcium channel works on greater conc of extracellular na ion..!?

[Dr.anamitra]

That's nice review. Can you please check at 9:48 ?

[tahseenhadeeqah]

Nice one i like your all lectures, every day i want to watch your videos

[satishhiremath]

Both dopamine and dobutamine are Beta-1 adrenergic agonists

[charliecharlie]

Hi, , , , will you plz explain dromotropy, , , , in positive dromotropy heart rate increase or contraction