Pathophysiology - Hypotension

low tension

Elaborate on hypotension

Low Blood Pressure

Key thing to know abt Hypotension

ONLY treat if symptomatic (ex: headaches)

If BP is down, what does that mean according to the formula

Either/both CO or SVR is down (AND ONLY THESE/LISTEN TO THE FORMULA)

What does vasodilation do to SVR

SVR decreases

Scenario: Either/both HR and SV decrease, what happens to Cardiac Output

Cardiac Output decreases

REMEMBER: what is Stroke Volume (SV) reduced by?

Low BV or low contractility

What can lead to low BV and contractility?

Bleeding and volume depletion

Sinus Bradycardia

Heart Rate abnormally low

Elaborate Sinus bradycardia

BP low due CO disruption

What does vasopressin do

Vasoconstriction → SVR increased

Pressors

Drugs that increase Blood Pressure (ex: Epinephrine/Norepinephrine)

As a solution, how does one increase CO?

Increase HR → Increase BV → Increase contractility → Increase SV

True or False? Vasopressin increases BV (blood volume)

TRUE, due keeping fluid

No matter the drug…

…it’ll increase OR decrease CO and SVR