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dysrhythmias!
Med surg nursing
Question | Answer |
---|---|
What does the P wave represent? | atrial depolarization |
What does the QRS complex represent? | ventricular depolarization |
What does the T wave represent? | ventricular repolarization |
How long is the normal P-R interval? | 0.12-0.2 sec |
How long is a normal QRS complex? | about 0.12 sec |
this rhythm has a rate of 70 a PR interval of 0.15 and every P wave is followed by QRS... | Normal sinus rhythm |
this rhythm has a rate of 55 a PR interval of 0.15 and every P wave is followed by QRS... | sinus bradycardia |
This rhythm has a rate of 119 a PR interval of 0.15 and every P wave is followed by QRS... | sinus tachycardia |
A nurse understands that a patient with sinus bradycardia may have an order of which medication? | atropine |
Sinus tachycardia may be caused by... | blood loss, shock, anemia, hyper or hypovolemia, pain, fever, exercise, anxiety etc. |
This rhythm may increase with inhalation and decrease with exhalation. It has an irregular rhythm, normal PR interval and is 60-100 bpm. P-P is a regular rhythm. | sinus arrhythmia |
In the following rhythm the P waves is mishaped and is landing on the downslope of the T wave. It has an irregular rhythm. | Premature atrial complexes (PAC) |
in this rhythm the sawtooth pattern is evident and the HR seems to sit on a single number | Atrial flutter |
In atrial fibrillation, what are the atria doing, and this client is prone to what? | atria are quiverring, and they are prone to clot formation. |
In this rhythm there are no clear p waves, PR interval cannot be measured, but there are QRS complexes present. | atrial fibrillation |
In this rhythm there are 3 or more PVCs in a row occurring at a rate exceeding 100 bpm. The ventricles are contracting without the atria. This is a life threatening dysrhythmia. | ventricular tachycardia |
In this rhythm there are No clear P waves, or clear QRS complexes. Everything seems to be quiverring. No palpable pulse. Medical emergency... | Ventricular fibrillation |
An EKG shows a PR interval of 0.27... what rhythm is being shown | first degree AV block |
First degree AV block will show a PR interval of... | >0.2 |
In this rhythm a patient is showing a PR interval that gets longer and longer until there is an isolated P with no QRS... | Second degree AV block --type 1 (mobids 1) |
In the following rhythm the PR intervals are the same but for every 3P waves there is 1 QRS complex | second degree AV block -- type 2 (mobids 2) |
A client presenting with second degree AV block type 2 is at risk of developing... | third degree AV block |
A client presenting with V. tachy is at risk for developing | Ventricular fibrillation |
The following rhythm shows PR intervals that differ in length but show no signs of a pattern. The atria and the ventricles seem to be contracting independently of eachother... | third degree AV block |
A nurse understands that the only treatment for 3rd degree AV block is ... | pacemaker! |
A Nurse understands that in _______________ all atrial impulses are conducted through the AV node into the ventricles at a slower rate than normal. | 1st degree AV block |
In this rhythm each atrial impulse takes longer than the preceding one to go through the AV node until there is a random P with no QRS and the cycle begins again | 2nd degree AV block --type 1 |
1st sign of cardiac output and oxygenation is | changes in LOC |
A nurse on a tele unit wants to look at her strips at least.... | q4hr |
dysrhythmias can cause many problems like... (name 3) | cardiac arrest, heart failure, and thromboembolic event |
Cardioversion is used as therapy on clients with a pulse as opposed to __________ which is done on clients without a pulse. | defibrillation |
How does an on demand pacemaker work? | when the heart rate falls below a certain preset number it releases a shock. |
a client with a pacemaker may show what looks like an irregular rhythm on the EKG, the nurse understands that clients with macemakers may show what is called... | a pacer spike |
The nurse understands that there are many complications associated wiht pacemakers. Name 6 | infection, bleeding, dislocation of lead, skeletal muscle stimulation, cardiac tamponade, pacemaker malfunction. |
A nurse at the nurses station upon looking at the tele monitor, sees her patient in room 101 is flat lining, what should her next action be? | CHECK THE LEADS!!! ... if client is not responsive THEN call a code |
an ICD, or implantable cardioverter defibrillator does what? | it is a device that detects and terminates life threatening episodes of tachycardia or fibrilation. |
A nurse is looking at a strip and is trying to calculate the rate. She realizes it is a sinus rhythm. A QRS complex comes in at the beginning of one of the big boxes and the next comes in at the following line (the end of that same box), what is the rate? | 300 bpm |
A nurse is looking at a strip and is trying to calculate the rate. She realizes it is a sinus rhythm. A QRS complex comes in at the beginning of one of the big boxes and the next comes in 3 big lines away, what is the rate? | 100 bpm |