Where are Beta 1 receptors found? Correct Ans ~ Heart and Kidneys
Stimulation of Beta 1 receptors result in an increase of what? Correct Ans ~ Heart: Inotropy,
Chronotropy, Dromotropy
Kidneys: Renin-Angiotensin-Aldosterone System = Vasoconstriction = Increase blood pressure
Which node is located at the junction of the superior vena cava and the right atrium, is typically
supplied by the Right Coronary artery, and fires at a rate of 60-100 bpm. Correct Ans ~ SA
Node
Atrial depolarization characterized by smooth, round, upright deflection less than 0.11 secs long
and less than 2.5mm tall is referred to as what on the ECG? Correct Ans ~ P wave
Carvedilol (Coreg)
Metropolol (Lopressor)
Atenolol (Tenormin)
Propranolol (Inderal)
Bisoprolol (Zebeta)
Acebutolol (Sectral)
Comolol (Brevibloc) Correct Ans ~ Beta Blockers - used for blood pressure and cardiac
problems
Epinephrine
Norepinephrine
Vasopressin
Dopamine
Phenylephrine
Dobutamine Correct Ans ~ Vasopressors
The middle of phase 3 to beginning of phase 4 in the cardiac cycle where cardiac cells are
partially refractory and partially repolarized and certain cells can be depolarized in response to
electrical stimulus. Correct Ans ~ Relative Refractory Period
(Partial flush of the toilet)
Treatment for Beta Blocker Overdose Correct Ans ~ Glucagon: 1-5mg IV/IO (1st Line Drug)
Calcium Chloride: 500mg - 1g IV/IO
Swelling of affected limb, pain and tenderness, inflammation/redness, warm to touch on affected
limb, pain on dorsiflexion (Homan Sign) are all signs of? Correct Ans ~ DVT
,Treatment of DVT Correct Ans ~ Supportive Care, Position of Comfort, Establish IV,
Cardiac Monitor, Pulse Ox, O2, Monitor vitals for embolism.
Do not massage affected limb.
The pressure gradient that drives coronary blood pressure.
The difference between aortic diastolic pressure and left ventricular end diastolic pressure that
perfuses the coronary arteries. Correct Ans ~ Coronary Perfusion
Tachycardia, Difficulty Breathing, Diminished Lung Sound, Pulse Quality Changes, and unequal
chest rise are early signs and symptoms of? Correct Ans ~ Tension Pneumothorax
Air is entering the pleural space but cannot escape. Positive pressure ventilation can make it
worse.
Criteria for Unstable Dysrhythmia Correct Ans ~ Ischemic Chest Pain
ALOC
Hypotension/Hypovolemia
Signs of Shock
Acute Heart Failure
Restriction of of cardiac contraction, falling cardiac output, and shock as a result of pericardial
fluid accumulation are characteristics of? Correct Ans ~ Cardiac Tamponade
Hypotension, SOB, Lightheadedness, Chest Pain, Syncope, Palpitations, Extremity Swelling, and
Muffled heart sounds are signs and symptoms of? Correct Ans ~ Cardiac Tamponade
Indications for Dopamine Correct Ans ~ Cardiogenic Shock
Distributive Shock after fluids
Hemodynamically significant Hypotension
Symptomatic Brady (2nd Line drug)
AHA Guidlines for Terminating CPR efforts in field(4) Correct Ans ~ Arrest was not
witnessed
No bystander CPR was administered
ROSC was not achieved after complete
ALS care in the field
No shocks were administered
Time frame that starts at the patient contact by EMS and ends with definitive therapy of catheter
passing through lesion of coronary vessel. Correct Ans ~ EMS-to-Balloon-Time
,Time from patient entering ED to catheter passing through lesion of coronary vessel. Correct
Ans ~ Door-to-balloon-time
Time from patient entering ED to fibrinolytic therapy administration. Correct Ans ~ Door-to-
needle-time
Time frame for door-to-balloon Correct Ans ~ <90mins
Time frame for door-to-needle Correct Ans ~ <30mins
Principle symptom of Coronary Artery Disease or Acute Coronary Syndrome that occurs when
supply of O2 is to the myocardium is insufficient to meet demand and cells become ischemic?
Correct Ans ~ Angina Pectoris
Chest pain that occurs at rest and is caused by coronary artery vasospasm? Risk for Dysrhythmia,
MI, Heart Block and Death Correct Ans ~ Prinzmetal Angina (PA)
Which electrolyte flows into cardiac cells to initiate depolarization? Correct Ans ~ Sodium
(Na+)
Which electrolyte flows out of cardiac cells to to initiate repolarization? Correct Ans ~
Potassium (K+)
Which electrolyte plays a major role in depolarization of pacemaker cells to maintain
depolarization and myocardial contractility? Correct Ans ~ Calcium (Ca++)
Which electrolyte stabilizes cell membrane and acts in concert with K+ and opposes actions of
Ca++? Correct Ans ~ Magnesium (Mg++)
Hypokalemia results in? Correct Ans ~ increased myocardial irritability
Hyperkalemia results in? Correct Ans ~ decreased automaticity/conduction
Hypocalcemia results in? Correct Ans ~ decreased contractility and increased irritability
Hypercalcemia results in? Correct Ans ~ Increased contractility
Hypomagnesemia results in? Correct Ans ~ decreased conduction
Hypermagnesemia results in? Correct Ans ~ increased myocardial irritability
Four properties of the Cardiac Conduction System Correct Ans ~ Excitability - cells respond
to electrical impulse
Conductivity - cells pass impulse to one another
, Automaticity - hearts ability to generate its own electrical impulse
Contractility - hearts ability to contract when stimulated
Affects of RCA occlusion in terms of the SA node ischemia? Correct Ans ~ SA node
becomes ischemic = slower firing rate (<60-100) or cease fire completely causing another
automaticity foci to take over such as AV (40-60) or Purkinje (20-40).
Which electrolytes are responsible for depolarization? Correct Ans ~ Sodium and Calcium
influx
Which electrolyte is responsible for repolarization? Correct Ans ~ Potassium outflow
Indications for CPAP (5) Correct Ans ~ Alert and able to follow commands
Moderate to Severe Respiratory Distress
Hyperventilation
SpO2 <90%
Systolic >90mmHg
Contraindications for CPAP (8) Correct Ans ~ Respiratory Arrest
Hypoventilation
ALOC
Chest Trauma/Pneumo
Tracheostomy
GI bleed or Vomiting
Inability to fit CPAP
Excessive Facial Hair/Dysmorphic features
During what phase of circulation do coronary arteries receive blood? Correct Ans ~ Diastolic
Coronary circulation begins from aorta at the? Correct Ans ~ Right and Left Coronary
Arteries
The right coronary artery has how many branches and supplies blood to where? Correct Ans ~
9
Right Atrium, SA/AV node, and Right Ventricle
Inferior Left Ventricle
Left Coronary Artery is the largest and shortest coronary vessel. It divides into what and supplies
blood to where? Correct Ans ~ Left Anterior Descending and Circumflex Coronary arteries.
Left Ventricle, Septum, and at times the AV node and atria.
Epinephrine MOA (4) and Dose Correct Ans ~ Beta 1 = Inotropy, Chronotropy, Dromotropy
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