CEN - Cardiac Review Guaranteed A+
Atropine has what affect on the heart ️️reverses cholinergic-mediated decrease in heart rate
(increases heart rate)
Describe afterload ️️The pressure the heart must eject against in the aorta measured by blood
pressure, specifically MAP (mean arter...
Atropine has what affect on the heart ✔️✔️reverses cholinergic-mediated decrease in heart rate
(increases heart rate)
Describe afterload ✔️✔️The pressure the heart must eject against in the aorta measured by blood
pressure, specifically MAP (mean arterial pressure)
Describe Mobitz Type I ✔️✔️PR interval gets longer and longer until and QRS complex is dropped.
Describe Mobitz Type II ✔️✔️PR interval remains normal at 0.12 and QRS complex is dropped
Describe preload ✔️✔️The amount of blood coming into the heart through the vena cava, measured
as CVP (central venous pressure)
EKG ST elevation in leads II, III and aVF suggests a MI in which area of the heart, affecting which
coronary vessel ✔️✔️Inferior Mi - Right coronary artery
EKG ST elevation in leads V1 and V2 suggests a MI in which area of the heart, affecting which coronary
vessel ✔️✔️Septal MI - Left anterior descending coronary artery
EKG ST elevation in leads V1 and V6 suggests a MI in which area of the heart, affecting which coronary
vessel ✔️✔️Extensive Anterior - Risk of sudden death - Left main coronary artery
EKG ST elevation in leads V3 and V4 suggests a MI in which area of the heart, affecting which coronary
vessel ✔️✔️Anterior MI - Left anterior descending coronary artery
EKG ST elevation in leads V5 and V6 suggests a MI in which area of the heart, affecting which coronary
vessel ✔️✔️Apex MI - Left circumflex coronary artery
, EKG ST elevation in leads I, aVL, V5 and V6 suggests a MI in which area of the heart, affecting which
coronary vessel ✔️✔️Lateral MI - Left circumflex coronary artery
How do Angiotension Converter Enzymes (ACE inhibitors) affect the cardiac system - What do you
monitor for ✔️✔️decrease preload and afterload through vasodilation and diuresis - dry cough,
hyperkalcemia, angioedema
How do chronotropes work ✔️✔️Chronotropic drugs may change the heart rate by affecting the
nerves controlling the heart, or by changing the rhythm produced by the sinoatrial node.
How do dromotropes work ✔️✔️Dromotropic agent affect the conduction speed in the AV node and
subsequently the rate of electrical impulses in the heart
How do inotropes work ✔️✔️Inotropic agents alter the force or energy of muscular contractions
How do Negative chronotropes affect the cardiac system ✔️✔️decrease heart rate: change the
rhythm produced by the SA node
How do Negative dromotropes affect the cardiac system ✔️✔️decrease automaticity: alters rate at
which electricity moves through the heart
How do Negative inotropes affect the cardiac system ✔️✔️decrease contractility: alters the force or
energy of muscular contractions
How do Positive chronotropes affect the cardiac system ✔️✔️increase heart rate: change the rhythm
produced by the SA node
How do Positive dromotropes affect the cardiac system ✔️✔️increase automaticity: alters rate at
which electricity moves through the heart
How do Positive inotropes affect the cardiac system ✔️✔️increase contractility: alters the force or
energy of muscular contractions
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