Random Shit To Know Flashcards

0
Q

How is MAP calculated?

A

(Diastolic x 2) plus the systolic

Divided by three!!!

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1
Q

Tell me about cyanide toxicity!

A

There’s a risk of cyanide toxicity when infusing SNP - the cyanide accumulates in the blood stream.

Sx are: behavioral changes, impaired O2 extraction, obtundation, seizures, and lactic acidosis.

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2
Q

Tell me about ICP!

A

Intracranial pressure is the pressure within the rigid skull!
WNL < 20mmHg
Decrease it by: lowering agitation, proper head placement, HOB at 30degrees, lower T if febrile, check CSF drain if present, raise MAP, last resort is hyperventilation to decrease CO2.

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3
Q

Tell me about CPP!!!

A

Cerebral Perfusion Pressure is the pressure driving blood through the brain, aka the cerebral blood flow.

CPP = MAP - ICP

WNL 70-90mmHg

Raised by increasing MAP or decreasing ICP!

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4
Q

What is normal SVR?

A

SVR 800 - 1300

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5
Q

What are adrenegic drugs?

A

An Adrenergic is a drug that has similar effects to, or the same as, epinephrine/ adrenaline!

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6
Q

What are cholinergics?

A

Cholinergics are synapses that use acetylcholine as its neurotransmitter.

The parasympathetic nervous system is entirely Cholinergic!!!!!! (Rest and Digest!)

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7
Q

What are Catecholamines?

A

Catecholamines are sympathomimetic amines, that “mimic” the sympathetic nervous system.

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8
Q

What are the first three branches off the aorta?

A
  1. Brachiocephalic artery (branches into the right subclavian artery and the right common carotid artery).
  2. Left common carotid artery.
  3. Left subclavian artery.
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9
Q

How does an IABP a work?

A

Balloon deflates in systole - which increases forward blood flow by reducing after load through a vacuum effect.

Balloon inflates in diastole - which increases blood flow to the coronary arteries via retrograde flow.

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10
Q

Tell me about ECMO!

A

Two types of ECMO:

  1. VA ECMO - supports both heart and lungs.
  2. VV ECMO - supports lungs only.
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11
Q

What is a Train Of Four?

A

A Train Of Four is a tool used for measuring neuromuscular blockade. Four stimuli are delivered along the path of a nerve, and the response of the muscle is measured.

Four equal muscle contractions will result of there if no neuromuscular blockade.
Two twitches seen means that 80% of the receptors are blocked.

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