Doctor insights on:
V Fib Vs Asystole
It can: Rhythm changes can occur rapidly in a code situation. V. Fib can degenerate into asystole. ...Read more
How can you tell the difference between v-fib or v-tach and asystole or pea with no electrical equipment? Basically, shockable vs nonshockable.
See ACLS: Number one you will not shock on your own unless you are trained. But basics wise, all of the above in all likelihood the person has a sudden death, and has no pulse or BP obtainable except may be early and slower v-tach. Again qualified personnels are the ones who would administer shocks. If someone needs a defib, an implantable one should have been placed. ...Read moreSee 2 more doctor answers
If someone goes into ventricular fibrillation, how can you keep them alive until the ambulance arrives? How can you prevent asystole before ambulance?
You can't absolutely: However, if the person is still responsive but you know they have developed VFib in the past, you can yell at them and encourage them to cough forcefully, many times, to attempt to get them back into a normal rhythm. If they are unconscious, and you have taken CPR, you can administer a blow with the fist to the BREAST BONE (and ONLY there). Such a person should have a pacemaker and be on meds. ...Read more
Final pathway: Ventricular fibrillation is the final step before a heart stops beating. Any heart that has not gotten enough blood flow or oxygen for a prolonged period of time will begin fibrillating followed shortly by asystole (no beating at all). In a sense, ventricular fibrillation is the final step every heart likely goes through before it stops beating. ...Read moreSee 1 more doctor answer
Very likely: Very likely especially if the first one was not treated. Somewhat less likely if the first one was treated and predisposing factors were identified and eliminated, but still possible e.g. Unidentified additional predisposing factors or just heart tissue being more sensitive. ...Read more
Alive vs dead: Simply put, you can live with Afib but not with vfib. Both are irregular heartbeats but Afib is a very common irregular heartbeat that many live with daily without worry. V-fib on the other hand is not able to sustain life and is the dramatic moment on TV where you might see patients shocked by defibrillator. ...Read moreSee 1 more doctor answer
Zero: In ventricular fibrillation, the heart is not beating at all - there is an uncoordinated quivering of the heart muscle without any effective contraction. V-fib leads to irreversible death within a few minutes. Immediate treatment (with an aed, automated external defibrillator) can convert v-fib to a rhythm that allows the heart to beat and restores the circulation. ...Read more
VT vs VF: VT: an organized rhythm arising in the ventricle. VF: a disorganized rhythm with no effective pumping. Depending on various factors, VT may be tolerated for long periods. In some cases, VT is not tolerated or degenerates into VF. VF results in death in a few minutes. ...Read more
Just had a nuclear stress test done and they just saw v fib happen is that a normal reaction to the cardio lite they used for the images?
If a person who is unconscience from V-Fib and receives defibrillation within 4 minutes, do they have a good chance of survival?
AF vs vf: Good question, they could look alike on ECG. Both would also result in cardiac arrest. As no perfusion would result, one would expect AF waves to be less visible than VF very quickly. If arrest had been present for say more than 30sec., VF would be more likely as the AF waves should likely not be visible. ...Read more
Can you tell me if atrial fibrillation with ventricular standstill is recognized from fine v-fib?
Afib/vfib: Ventricular standstill and fine v-fib are functionally the same the ventricle is not contracting - vfib is a slight quivering which may or may not be identifiable on ECG; if the ventricle is not contracting then it is not possible to non-invasively identify atrial fibrillation from simply sinus/atrial arrest. ...Read more
I get ekgs very often & my qt interval is usually 380-430. Today my heart rate was 70 but qt was 338. Is that shortened? Will I go into v-fib?
QT varies w/ HR: Your qt interval will vary w/ your heart rate, as well as certain electrolytes and medications. Yours is in the normal range, deadly arrhythmias usually occur when the qt is too long, not too short, so unless there is some other reason to be at risk for v. Fib., like structural heart disease, your risk should be low. ...Read moreSee 1 more doctor answer