Pam Bartley CEN Study Guide-Cardiology Verified A+
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Pam Bartley CEN Study-Cardiology Verified A+
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Pam Bartley CEN Study-Cardiology Verified A+
Pam Bartley CEN Study Guide-Cardiology Verified A+
Cardiac output ️️stroke volume x heart rate (amount of blood ejected per contraction)
Primary compensatory mechanism for low cardiac output in peds ️️Tachycardia
Late sign of low CO ️️Hypotension, bradycardia is ominous sign in pe...
Pam Bartley CEN Study Guide-Cardiology Verified A+
Cardiac output ✔️✔️stroke volume x heart rate (amount of blood ejected per contraction)
Primary compensatory mechanism for low cardiac output in peds ✔️✔️Tachycardia
Late sign of low CO ✔️✔️Hypotension, bradycardia is ominous sign in peds
What is stroke volume influenced by ✔️✔️afterload, preload, contractility
Preload ✔️✔️volume evaluated by CVP
How to increase preload ✔️✔️volume (blood/fluids), pressprs
How to decrease preload ✔️✔️diuretics
What is afterload ✔️✔️resistance to ventricular emptying, measured by systemic vascular resistance
When is afterload decreased and how would you treat ✔️✔️distributive shocks (neurogenic, septic,
anaphylactic) and by vasodilators- give them vasopressors
How would you decrease afterload ✔️✔️vasodilators
when is afterload increased ✔️✔️HTN, shock compensation
SNS stimulation releases what ✔️✔️epinephrine, catecholamines, norepi-increases HR,
vasoconstriction, pupil dilation, catecholamines increase BSG through glycogenesis
, Parasympathetic system does what ✔️✔️Decreases HR
MAP equation ✔️✔️(SBP + 2DBP)/3
Pulse pressure ✔️✔️difference between systolic and diastolic pressure
Widened PP seen in... ✔️✔️increased ICP
Narrowed PP seen in.... ✔️✔️early stages of shock
Cushing's triad indicates what and what are the signs ✔️✔️Increased ICP, widened PP (or HTN),
irregular breathing pattern, and bradycardia
What do chronotropes do and what is an example ✔️✔️Control HR- cardizem is a negative
chronotrope, atropine positive
What do inotropes do and what is an example ✔️✔️Affect contractility- dobutamine and dopamine
are positive inotropes
What do dromotropes do and what is an example ✔️✔️Control automaticity- positive dromotrope is
epi, negative dromotrope is beta blockers
Beta blockers end in and do what ✔️✔️-olols, slow HR and lower BP, may mask signs of early shock
and hypoglycemia
Calcium channel blockers end in and do what ✔️✔️-dipine (and cardizem), control ventricular rate in a
fib and HTN
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