Relias Dysrhythmia Basic A And B Test Bank 2024 Graded A+

P a g e 1 | 62 1 RELIAS DYSR HYTHMIA BASIC A AND B TEST BANK 2024 GRADED A+ 2nd Degree Heart Block (Mobitz II) - ansRare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until the P wave is not followed by a QPR 3rd degree heart block - ansno obvious correlation between p and qrs, need pace maker Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow) P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node slower than faster ventricular pacing than should be QRS: Wide QRS Conduction: Ventricular only Rhythm: Regular - benign rhythm that is sometimes seen during acute MI or early after reperfusion. - Rarely sustained, does not progress to vfib, rarely requires treatment asystole - ansabsence of contractions of the heart Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from abnormal conduction in the atria Atrial Flutter - ansirregular beating of the atria; often described as "a -flutter with 2 to 1 block or 3 to 1 block" Atrial paced rhythm - ansspike before P wave Bigeminy PVC - ansevery other beat is a PVC Failure to capture (pacemaker) - ans failure to sense (pacemaker) - ans First degree heart block - ansatrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a second before being conducted to the ventricles Idioventricular Rhythm - ans<40 *looks like vtach but slow* - no P waves (from vent foci) P a g e 2 | 62 2 - Wide QRS (serious, death like rhythm) P a g e 3 | 62 3 - called "dying heart" rhythm...occasional ventric beat b4 death (asystole) Junctional Rhythm - ans40 -60 Regular! -impulse from AV node w/ retro/antegrade transmission - P wave often inverted/buried/follow QRS - slow rate - narrow QRS (not wide like ventricular) Junctional Tachycardia - ans>60 bpm (ms. K; 150-250) - KEY: will be regular (consistent) - AV junction produces a rapid sequence of QRS -T cycles - p-wave often inverted/buried/follow QRS monomorphic ventricular tachycardia - anspresents with wide QRS complexes of a common shape. normal sinus rhythm - ansheart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Premature Atrial Contraction (PAC) - ansHeart Rate: Depends on underlying rhythm Regularity: Interrupts the regularity of underlying rhythm P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave PRI: measures between .12-.20 seconds and can be prolonged; can be different from other complexes QRS: <.12 seconds Premature Junctional Contraction - ansInverted p wave or hidden p wave PRI<0.12 or none Normal QRS premature ventricular contraction (PVC) - ansa ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker) PVC couplets - ansPVC occurring in pairs, no adequate C.O. when this occurs Sinus Arrest/Pause - ans- SA node doesn't fire - notice absence of P -wave for a complete cycle (a missed cycle) length of pause ≠ multiple of normal rate (block) Sinus Arrhythmia - ansAppearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia - ans<60 normal sinus rhythm P a g e 4 | 62 4 Sinus Tachycardia - ans>100 (100 -150) normal sinus rhythm Supraventricular Tachycardia (SVT) - ansan abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node Torsades de pointes - ansRate: 120 - 200 usually P wave: Obscured by ventricular waves QRS: Wide QRS - "Twisting of the Points" Conduction: Ventricular only Rhythm: Slightly irregular Ventricular fibrillation (V-fib) - ansabnormal heart rhythm which results in quivering of ventricles Ventricular paced rhythm - ansventricular contractions which occur in cases of complete heart block. 2nd Degree Heart Block (Mobitz II) - ansRare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until the P wave is not followed by a QPR 3rd degree heart block - ansno obvious correlation between p and qrs, need pace maker Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow) P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node slower than faster ventricular pacing than should be QRS: Wide QRS Conduction: Ventricular only Rhythm: Regular - benign rhythm that is sometimes seen during acute MI or early after reperfusion. - Rarely sustained, does not progress to vfib, rarely requires treatment asystole - ansabsence of contractions of the heart Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from abnormal conduction in the atria