adult health 3 cardio
causes of sinus tachycardia
-Exercise -Fever -Pain -Fear and anxiety -Hypoxia -CHF -Acute Myocardial Infarction (AMI) -Infection -Sympathetic stimulation -Shock -Dehydration, hypervolemia -PE -Hyperthyroidism -Medications such as epinephrine, atropine, and dopamine -Caffeine-containing beverages -Nicotine -Drugs such as cocaine, amphetamines, "ecstasy," cannabis
Sinus Tachycardia qrs interval is less than ?
0.12 secs
normal sinus rhythm p-r interval is how wide?
0.20 seconds
ventricular tachycardia rate ?
100-250 bpm
Supraventricular Tachycardia (SVT) rate is ?
150-250 bpm
when the bundle of his takes over it beats at
20-40 beats per min.
Junctional Rhythm rate
40-60 bpm
Accelerated Junctional Rhythm rate
60-100 bpm
normal sinus rhythm rate is ?
60-100 bpm
Sinus Bradycardia
<60 normal sinus rhythm p wave is normal pri interval is normal qrs interval is normal
Sinus Tachycardia
>100 (100-150) normal sinus rhythm p wave is normal pri interval is normal 0.2 sec qrs interval is normal
ventricular fibrillation is
A disorganized cardiac rhythm that produces no pulse or cardiac output.
Adenosine
Antiarrhythmic drug
Atenolol
Beta-blocker It's used to treat high blood pressure and irregular heartbeats (arrhythmia). It can also be used to prevent chest pain caused by angina. If you have high blood pressure, taking atenolol helps prevent future heart disease, heart attacks, and strokes.
Atropine does what?
Blocks Acetylcholine: increases HR and CO. Works at SA node.
1st Degree Heart Block Causes
Heart disease, medications, rheumatic disease, hyperthyroidism, vagal stim, athletic conditioning.
Premature Ventricular Complex
Is typically greater then 0.12 seconds, because the ventricular depolarization is abnormal or aberrant. A pause then a PVC appears.
1st Degree Heart Block Treatment
Monitor; Observe for symptoms
Premature Ventricular Complex
Rhythm Irregular Rate The underlying rate P Wave Absent PR Interval Not measurable QRS Wide (> 0.10 sec), bizarre appearance
STEMI
ST elevation MI, real-time ongoing death of heart tissue due to ischemia
what do you associate Adenosine with only?
SVT
Treatment of Stable SVT
Vagal maneuvers followed by adenosine
Bigeminy is when
a PVC occurs on every other beat.
Sinus Tachycardia heart rate is
above 100
Ventricular fibrillation (V-fib) is there a rate?
absent
Ventricular fibrillation (V-fib) is there a rhythm?
absent
what rhythm is this?
atrial arrhythmia SVT.
if unstable SVT what do you do?
cardioversion
what conditions makes for a unstable heart pt? any of them
chest pain alter LOC shortness of breath hypotensive diaphoretic
2nd degree heart block type 1 (mobitz II) P-R interval is
constant for conducted beats
1st degree heart block rate?
depends on the underlying rhythm.
Premature Ventricular Complex looks like there is a
ectopic(extra) beats that occur in the underlying rhythm.
adenosine how to give it IV
give quick and flush fast.
ventricular tachycardia what does the QRS interval look like?
greater than 0.12 wide QRS.
1st degree heart block P-R interval is
greater then 0.20 seconds
stable causes of SVT?
heart disease HF
normal sinus rhythm
heart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute p wave normal upright present positively detected pri interval 0.2 seconds qrs interval 0.12 seconds
Junctional Rhythm P waves are?
inverted, after qrs or absent
atrial fib. rhythm is
irregular
2nd degree heart block type 1 (wenckebach) Rhythm is
irregular (usually regularly irregular)
2nd degree heart block type 1 (mobitz II) rhythm is
irregular(usually regularly irregular)
qrs interval is how wide?
less than 0.12 sec
1st degree heart block QRS interval is
less than 0.12 seconds
2nd degree heart block type 1 (wenckebach) QRS interval is
less than 0.12 secs
atrial fib qrs interval is
less than 0.12 secs
junctional rhythm QRS interval is
less than 0.12 secs
sinus bradycardia qrs interval is ?
less than 0.12 secs
Sinus Tachycardia p-r interval is how. long
less than 0.20 sec
sinus bradycardia p-r interval is ?
less than 0.20 secs
3rd Degree Heart Block (Complete Heart Block) P-R interval
no relationship between P wave and QRS.
Ventricular fibrillation (V-fib) is there a P-R interval?
none
Ventricular fibrillation (V-fib) is there a QRS interval?
none
Ventricular fibrillation (V-fib) is there p waves?
none
atrial fib p-r interval is
none
ventricular tachycardia is there a P-R interval?
none
what strip is this?
normal sinus rhythm.
SA node (sinoatrial node)
pacemaker of the heart it sets the heart beat at 60-100 beats per min
3rd Degree Heart Block (Complete Heart Block) P waves are
present and upright
Sinus Tachycardia p waves are ?
present and upright
normal sinus rhythm p wave is
present and upright
sinus bradycardia p. wave is ?
present and upright
1st degree heart block p waves are
present and upright.
2nd degree heart block type 1 (mobitz II) P wave is
present and upright.
2nd degree heart block type 1 (wenckebach) p waves are
present and upright.
2nd degree heart block type 1 (wenckebach) P-R interval is
progressively longer. until a qrs is dropped.
2nd degree heart block type 1 (mobitz II) rate is ?
rate varies but ventricular rate is usually bradycardic
3rd Degree Heart Block (Complete Heart Block) rate is
rate varies ventricular rate is usually bradycardic
1st degree heart block rhythm is
regular
3rd Degree Heart Block (Complete Heart Block) rhythm is
regular
Sinus Bradycardia rhythm is
regular
Sinus Tachycardia rhythm is
regular
Supraventricular tachycardia rhythm is?
regular
ventricular tachycardia rhythm?
regular
3rd Degree Heart Block (Complete Heart Block) P interval is
regular as is the R
Atrial Flutter rhythm would be?
regular if no variable conduction.
atrial arrhythmia SVT
rhythm is normal rate 160-190 p wave is hiding or merged pri interval can't be measure qrs is normal
atrial arrhythmias atrial flutter
rhythm is regular or irregular rate is 60-100 p wave-no PRI interval is-no QRI interval is- yes
atrial flutter P wave would look like a?
saw tooth or picket fence appearance
what rhythm is this?
sinus bradycardia
causes of sinus bradycardia
sinus node dysfunction, beta blockers, CCBs, opioids, being athletic.
what rhythm is this?
sinus tachycardia
when the sa node fails what is the backup node
the av node picks up and it beats at 40-60 beats per min.
ventricular tachycardia are P waves present?
they are unable to distinguish if present.
Causes of SVT
thyroid disease cocaine HF Pulmonary Embolism Pneumonia
atrial fib p waves are
unable to detect.
Supraventricular Tachycardia (SVT) P waves are?
unable to determine
Supraventricular Tachycardia (SVT) P-R interval is?
unable to determine
Junctional Rhythm bradycardia rate
under 60
sinus bradycardia hr is ?
under 60
arial flutter what does the P-R interval look like?
usually normal but may vary. QRS interval less than 0.12 secs
3rd Degree Heart Block (Complete Heart Block) QRS INTERVAL IS ?
variable
Junctional Rhythm P-R interval
variable
atrial fib rate. is
variable
atrial flutter rate would be
variable depending on conduction. atrial conduction would be higher than ventricular rate.
2nd degree heart block type 1 (mobitz II) qrs interval is
variable.
2nd degree heart block type 1 (wenckebach) rate is
varies ventricular rate is usually slowed
Couplets are
when two PVCs occur back to back.
