Mod 1 cardiac Flashcards
Arterial catheters
provide pressure readings
BP
saline flush bags pressured to 300 mmHg
central venous pressure
placed in internal jugular or subclavian or femoral vein
indicates right atria pressure and estimate of R ventricular filing pressure (preload)
normal CVP
8- 12 mm hg
Swanz-Ganz catheter or PA catheter
placed in internal jugular or subclavian or measures pulmonary artery
normal systolic is 15-30
diastolic 4-12
normal PR interval
0.10-0.20 or < 5 small boxes
QRS interval
0.06 to 0.10 seconds
1 small box equals
0.04 secs
1 large box equals
0.20 secs
5 large box
1 second
depolarization
contraction
repolarization
relaxation
P-wave
atrial depolarization
SA node sending out impulse
QRS
ventricular depolarization
T-wave
ventricular repolarization
Sinus bradycardia Tx
atropine 0.5mg IVP
pacemaker
Sinus tachycardia causes “TACHY HEARTS”
Temperature
Aerobics
Cardiac disease
Hyperthyroidism
Yelp (pain)
Hemorrhage or hypovolemic shock
Emotional stress/fear
Anemia
Respiratoy conditions
Therapeutics (atropine, albuterol, dopamine, epinephrine)
Simulants
Sinus tachycardia tx
BB
CCB
pain meds
antipyretic
Premature atrial contractions (PACs)
pacemaker cell close to SA node fired too early has pause at end
PVC tx
dependant on cause
eliminate cause
atrial flutter
no P-waves has F-waves
QRS complex < 0.12 secs
Dobutamine nursing considerations
continous cardiac montioring
weight for dosage calculatino
baseline v/s
monitor i&O
monior potassium
monitor drug range (40-190)
Dobutamine s/e
tachycardia
pain at injection site
Dobutamine indications
heart failure
cardiogenic shock
Nitroglycerin nursing considerations
take off at night and then reapply in morning
contraindicated in taking erectile dysfunction meds
take tylenol for headache
keep in amber glass
do no chew crush or swallow SL tabs
Nitroglycerin S/E
FLUSHED
Flushing
Lightheadedness
Upset stomach
Syncope
Hypotension/Headache
Effectiveness/tolerance decreases
dizziness
Amiodarone teaching
take in divided doses if upset stomach
avoid grapefruit juice
use sunscreen no tanning beds
stays in body for a long time so side effects may remain even after if stopped
Amiodarone s/e
AMIODARONE
Abnormal thyroid function
Muscle weakness
Interstitial lung disease
Optic neuropathy
Discoloration of skin (blue skin)
Ataxia
Reduction of HR
Occular corneal microdeposits
Nausea/vomiting/constipation
Enzyme fluctuations of the liver
Beta blocker teaching
Hold if SBP <90 HR <60
take medication with food
monitor for bradycardia & hypotension
can mask hypoglycemia (anxiety, shakiness, palpitations except for sweating & hunger)
dont stop quickly, reduce over 2 weeks
Beta blocker S/E
BAD FISH
Bradycardia/bronchospasm
AV block/arrhythmias contrindications
dizziness/depression
fatigue
impotence
s/s of hypoglycemia masked
hypotension
ACE inhibitor side effects
TOP CARD
teratogenic
orthostatic hypotension
potassium increase
cough
angiodema
renal impairment
dizziness
Premature ventricular contractions
impulse starts in ventricles
no p=wave
QRS wide > or equal to 0.12 or 3 smal boxes
PVC tx
based on s/sx correct cause
ventricular tachycardia with pulse
pt maintaining BP and pulse with or without s/sx