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Doctor insights on: Loss Of Oxygen During Cardiac Arrest

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When someone goes in 2 complete cardiac arrest. No pulse heaetbeat. How many min would it take without oxyegen to b brain dead?

When someone goes in 2 complete cardiac arrest. No pulse heaetbeat. How many min would it take without oxyegen to b brain dead?

Not long: Survival from cardiac arrest is determined by many things, and time is certainly an important one.
However, how well the body is oxygenated and perfused during the arrest (say, by cpr) as well as body temperature all play a role. In your question, you imply there is no oxygen - so the answer is mere minutes. ...Read more

Dr. Creighton Wright
3,971 Doctors shared insights

Heart Attack (Definition)

A life-threatening condition in which the blood vessels that supply the heart becomes occluded and thus the heart itself is not longer receiving any blood flow. Without this blood flow, the heart muscle dies and cannot pump blood to the ...Read more


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Is coughing useful during cardiac arrest and why?

Is coughing useful during cardiac arrest and why?

No: The so called "cough cpr" is not an accepted method of cardiac resusitation. ...Read more

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What cause cardiac arrest during c sections?

What cause cardiac arrest during c sections?

Or any operation: Bleeding
clot embolism
anesthesia or drug toxicity or interaction
pre-existing heart or lung disease.

Specific: amniotic or air embolism
eclampsia and hypertension
there are more but this is a sample. ...Read more

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Is cough really helpful during a cardiac arrest? If yes, then why and how?

Is cough really helpful during a cardiac arrest? If yes, then why and how?

Briefly: Timed cough may stimulate heart beat- PVC and temporarily push a little blood around.
Cpr and defibrillation are likely to save
the person. ...Read more

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Is there brain function during a cardiac arrest?

Is there brain function during a cardiac arrest?

No: Cardiac arrest means- heart not beating, hence no blood flow/ circulation- brain does not function when there is no blood supply. ...Read more

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What actually happens physiologically in your heart during a? Cardiac arrest?

What actually happens physiologically in your heart during a? Cardiac arrest?

Many options: Asystole, ventricular fibrillation, ventricular tachycardia, torsades DES pointes, . The ventricles fail to provide significant arterial flow to the aorta and the pulmonary artery, the systemic arterial pressure drops below critical level leading to cerebral hypoperffusion and syncope. If prolongued brain death occurs within 5 minutes at normothermia. ...Read more

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Is it true that coughing helps during a cardiac arrest? If yes, then why and how?

Is it true that coughing helps during a cardiac arrest? If yes, then why and how?

Sometimes people: Have a cardiac arrest preceded by an arrhythmia, or abnormal heart rhythm. Not always from a blockage of a coronary artery. The rhythm that may respond to coughing is called ventricular tachycardia. If th epatient coughs hard, it may sometimes trigger the neves to the heart that slow the heart rate and at least temporarily return the rhythm to one that is less dangerous. But you must seek help. ...Read more

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What would doctors do if they went into cardiac arrest during an operation?

What would doctors do if they went into cardiac arrest during an operation?

Doctors arresting?: If I had an intraoperative arrest I would hope the anesthetist and surgeon would do chest compressions, bag valve mask me, and treat the cause of the arrest. Physicians have many opinions on how they want to be treated themselves. ...Read more

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Do you know if ventricular fibrillation is the most common rhythm during cardiac arrest?

Do you know if ventricular fibrillation is the most common rhythm during cardiac arrest?

No.: The initial rhythm causing a cardiac arrest is most usually monomorphic ventricular tachycardia (62%), followed by bradycardia (17%), then polymorphic VT (13%) and finally primary vf (8%). Most of these rhythms will eventually degenerate into vf, however. ...Read more

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Can an electrocardiogram prevent sudden cardiac arrest in young teenagers/adults who die during marathons?

Can an electrocardiogram prevent sudden cardiac arrest in young teenagers/adults who die during marathons?

Screen test: ECG is used because it is relatively inexpensive. We have no good cost effective screening test. Cardiac arrest is rare when compared to the numbers of exercising population. Tests become more effective when a specific question within the effectiveness of the test are the reason for the test. ...Read more

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What does "pulmonary embolectomy with cardiac arrest and ROSC", mean? They did use CPB during procedure

Complicated.: Here is the breakdown.
There was a blood clot in the lungs that was removed surgically. During the procedure, the heart stopped. With CPR, the heart restarted and starting pumping normally (ROSC = return on spontaneous circulation). The use of CPB (cardiopulmonary bypass) is not indicated in a situation like this. Hope this helped. ...Read more

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What would doctors do if someone went into cardiac arrest during heart operation?

What would doctors do if someone went into cardiac arrest during heart operation?

Happens everyday!: It's standard operating procedure in many heart operations for the surgeon to stop or arrest the heart and put the patient temporarily on a heart-lung machine. In fact, if one should suffer an unexpected cardiac arrest, the heart operating room is the very best place in the world for it to happen (since the resuscitation statistics there are stellar.). ...Read more

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I read adrenaline can cause sudden cardiac arrest during physical activity. How do you know if your workout is safe? And, can emotional stress cause sudden cardiac arrest? I struggle with anxiety and am worried about this.

I read adrenaline can cause sudden cardiac arrest during physical activity. How do you know if your workout is safe? And, can emotional stress cause sudden cardiac arrest? I struggle with anxiety and am worried about this.

Don't worry: Sudden cardiac arrest during exercise and physical activity is almost always due to a congenital (from birth) electrical problem in the heart. If you are concerned, your doctor can run a simple ECG to identify whether you are at risk. ...Read more

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In 65 y/o female with asthma and previous cardiac arrest W/ROSC during Pulm. Embolectomy W/ CPB. Which is safest method for pericardial window?

In 65 y/o female with asthma and previous cardiac arrest W/ROSC during Pulm. Embolectomy W/ CPB. Which is safest method for pericardial window?

Complicated question: You ask a VERY complicated question about a complex medical history. The 1st thing to ascertain: "why do you need a pericardial window? " Normally, they are for recurrent cardiac effusions; despite the dramatic surgery & event, effusions aren't typical after cardiac arrest. 2nd, need to know why pulm embolism developed. TTYD or use HealthTap Prime to find answers/specialists. Not enough space here. ...Read more

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How do you get cardiac arrest help?

Call 911: Then start cpr
yell for help and a defibrillator!

bls training. ...Read more

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How common is it to survive a cardiac arrest?

How common is it to survive a cardiac arrest?

Not common: Unfortunately, uncommon. Hard to say exactly, & depends somewhat on what kind of cardiac arrest, what other problems the person has, how long before care, etc. Generally though, for out-of-hospital arrests, less than 20% survive long enough to be discharged from the hospital. Also concerning is how often cardiac arrest is the 1st sign of underlying CAD (plaque in vessels). See a proactive doctor! ...Read more

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Can cardiac arrest be considered accidental death?

Can cardiac arrest be considered accidental death?

No: Only cardiac arrest associated with a direct heart injury like a blunt trauma in a motor vehicle accident. Or accidental shooting. ...Read more

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What symptoms of cardiac arrest are the most common?

What symptoms of cardiac arrest are the most common?

Death: There may be several symptoms that precede cardiac arrest. These include chest pain, palpitations, fainting or near fainting spells or shortness of breath. Unfortunately many patients suffer cardiac arrest without any warning symptoms. ...Read more

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What is the difference between cardiac arrest and mi?

What is the difference between cardiac arrest and mi?

Arrest requires CPR: Myocardial infarction (mi) occurs when there is an obstruction of a blood vessel that supplies part of the heart and this leads to damage to the heart muscle. Mi might lead to death and can cause cardiac arrest if not treated but not always. Cardiac arrest means that the heart is no longer pumping blood, can be caused by a variety of things and always leads to death if not treated promptly. ...Read more

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How long can a person be in cardiac arrest and ressurect?

How long can a person be in cardiac arrest and ressurect?

Survival rate: Of people that receive initial emergency treatment by ambulance is less than 5%, with 15% returning to spontaneous circulation. With defibrillation within 3-5mins the survival can increase to 30%. Survival depend on the cause of the arrest, circumstances, age. Every minute without oxygen to the organs, specially the brain, decrease the recovery without permanent damage. ...Read more

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What is the difference between a mi and a cardiac arrest?

MI and cardioarrest: A myocardial infarction is an event caused by a blockage in an artery which damages the heart muscle. A cardiac arrest is an event that may be caused by a myocardial infarction or may be caused by other events such as respiratory failure or electrolyte abnormalities which causes the heart to go into an unstable rhythm. In this rhythm the heart cannot pump effectively, so treat the cause. ...Read more

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Can you tell me the symptoms and causes of cardiac arrest?

Can you tell me the symptoms and causes of cardiac arrest?

You die: Once you die you will not have symptoms unless somebody saves your life with cpr.


Heart disease is from smoking, high cholesterol, diabetes, high blood pressure, and family history. ...Read more

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What's the first thing to do if you see someone go into cardiac arrest?

What's the first thing to do if you see someone go into cardiac arrest?

Chest compressions: During cardiac arrest the heart is no longer able to effectively pump blood to the rest of the body. As a result, the brain does not receive enough oxygen which causes the patient to "pass out" and become unresponsive. ...Read more

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Can leukemia cause cardiac arrest?

Can leukemia cause cardiac arrest?

Yes: Sepsis renal failure stroke heart attack. Even anaphylaxis to chemotherapeutics. ...Read more

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What causes sudden cardiac arrest?

What causes sudden cardiac arrest?

Long list: Sudden cardiac death had several causes: Coronary disease or heart attack may cause sudden cardiac death, but also sudden death can occur in patients with cardiac abnormality of the heart muscle that can be detected on echo cardiogram and sometime undetected on cardiac echo, electrical genetic anomaly may cause sudden death ...Read more

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Can stress cause a cardiac arrest?

Can stress cause a cardiac arrest?

Stress: It is possible depending on whether you have underlying medical problems or not. A more commonly recognized temporary decrease in function of the heart (takasubo's) has been related to stress. ...Read more

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Can leukemia cause a cardiac arrest?

Can leukemia cause a cardiac arrest?

No: Not in and of itself. However, some of the drugs used in the treatment od leukemia can be cardiotoxic. In addition, patients with leukemia are often very i'll and may have underlying conditions that become more problematic during treatment. ...Read more

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Can dehydration cause cardiac arrest?

Can dehydration cause cardiac arrest?

Dehydration: Severe dehydration and increase the viscosity of the blood (make it more sluggish). The average normal person will tolerate this. If there is underlying limitation of blood flow to the heart (blockage in the arteries), problems could arise. ...Read more

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Can propranolol cause cardiac arrest?

Can propranolol cause cardiac arrest?

Cardiac arrest: Propranolol in extremely high dose might be able to cause bradycardic cardiac arrest. In the usual dose ranges that happenstance is unlikely. Tachycardic cardiac arrest is unlikely on propranolol. ...Read more

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Does cardiac arrest cause hypernatremia?

Does cardiac arrest cause hypernatremia?

Not directly: Cardiac arrest by itself would not cause hypernatremia but if the patient has become dehydrated during the events that led to the cardiac arrest, that may explain it. ...Read more

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Help can cocaine stabilize cardiac arrest?

Help can cocaine stabilize cardiac arrest?

Cardiac arrest: No. Cocaine can actually cause cardiac arrest. Why do you ask? ...Read more

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What does sudden cardiac arrest feel like?

What does sudden cardiac arrest feel like?

Fainting: No blood flow to brain causes syncope- fainting.
With luck the fall causes heart to beat! At least a few til someone calls 911 and starts cpr. ...Read more

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What are the signs of sudden cardiac arrest?

Loss of Consciousnes: Loss of consciousness, not breathing, erratic (or no) pulse, paleness. ...Read more

Dr. Scott Bolhack
3,115 Doctors shared insights

Oxygen (Definition)

Oxygen is a gas that the cells in your body need to work properly. The air we breathe normally has 21% oxygen. A maximum of 100% oxygen can be given. Babies with heart or lung problems may need ...Read more


Dr. Katharine Cox
5 Doctors shared insights

Cardiac (Definition)

Cardiac translates literally to "heart, " and any place the term is seen, such ...Read more