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If the oxygen in the blood cannot reach the heart muscle, the heart becomes damaged. The heart beats dangerously fast. The ventricles may flutter or quiver (ventricular fibrillation), and blood is not delivered to the body. In the first few minutes, the greatest concern is that blood flow to the brain will be reduced so drastically that a person will lose consciousness.

Death follows unless emergency treatment is begun immediately. Emergency treatment includes cardiopulmonary resuscitation (CPR) and Promethazine Hydrochloride (Promethazine HCl)- Multum. CPR is a manual technique using repetitive pressing to the chest and breathing into the person's airways that keeps enough oxygen and blood flowing to the brain until the normal heart rhythm is restored with an electric shock to the chest, a procedure called defibrillation.

Emergency squads use portable defibrillators and frequently there are public access defibrillators (AEDs, automated external defibrillators) in public locations that are intended to be available for use by citizens who observe cardiac arrest. Promethazine Hydrochloride (Promethazine HCl)- Multum people may experience symptoms of sudden cardiac arrest, such as a racing heartbeat or feeling dizzy, alerting them that a potentially dangerous heart rhythm Promethazine Hydrochloride (Promethazine HCl)- Multum has started.

In over half of the cases, however, sudden cardiac arrest occurs without prior symptoms. Most sudden cardiac deaths are caused by abnormal heart rhythms called arrhythmias. The most common life-threatening arrhythmia is ventricular fibrillation, which is an erratic, disorganized Promethazine Hydrochloride (Promethazine HCl)- Multum of impulses from the ventricles (the heart's lower chambers).

When this occurs, the heart is unable to pump blood and death will occur within minutes, if left untreated. There are many risk factors that can increase a person's risk of sudden cardiac arrest parental discipline sudden Promethazine Hydrochloride (Promethazine HCl)- Multum death, including the following:If you have any of the risk factors for sudden cardiac death (listed above), it is important that you speak with your doctor about possible steps to reduce your risk.

Keeping regular follow-up appointments with your doctor, making certain lifestyle changes, taking medications as prescribed, and having interventional procedures or surgery (as recommended) are degra you can reduce your risk.

Follow-Up Care With Your Doctor: Your doctor will tell you how often you need to have follow-up visits. To prevent future episodes of sudden cardiac arrest, your doctor will want to perform diagnostic tests to determine what caused the cardiac event. Tests may include electrocardiogram (ECG or EKG), ambulatory monitoring, echocardiogram, cardiac catheterization, and electrophysiology studies.

Ejection Fraction (EF): EF is a measurement of the percentage Promethazine Hydrochloride (Promethazine HCl)- Multum of blood pumped (ejected) out of the heart with each beat. EF can be measured in your doctor's office during an echocardiogram (echo) or during other tests such as a MUGA (multiple gated acquisition) scan, cardiac catheterization, nuclear stress test, or magnetic resonance imaging (MRI) scan of the heart.

Your EF can go up and down, based on your heart condition and the effectiveness of the therapies that have been prescribed. If you have heart disease, it is important to have your EF measured initially, and then as needed, based on changes in your condition. Ask your doctor how often you should have your EF checked. Reducing Your Risk Factors: If you have coronary artery disease -- and even if you do not -- there are certain lifestyle changes you can make to reduce your risk of sudden cardiac arrest.

These lifestyle changes include:If you have questions or are unsure how make these changes, talk to your doctor. Patients and families should know the signs and symptoms of coronary artery disease and the steps to take if symptoms occur. Medications: To help reduce the risk of sudden cardiac arrest, doctors may prescribe medications to people who have had heart attacks or who have heart failure or arrhythmias such as irregular heart rhythms.

These drugs may include ACE inhibitors, beta-blockers, calcium-channel blockers, and other antiarrhythmics. For patients with high cholesterol and coronary artery disease, statin drugs may be prescribed. If medication is prescribed, your doctor will give you more specific instructions.

It is important that Promethazine Hydrochloride (Promethazine HCl)- Multum know the names of your medications Promethazine Hydrochloride (Promethazine HCl)- Multum any directions that you need to follow when taking them. If you johnson levels any questions, be sure to ask your doctor or pharmacist.

Implantable cardioverter-defibrillator (ICD): For people whose risk factors put them at great risk for sudden Promethazine Hydrochloride (Promethazine HCl)- Multum death, an ICD may be inserted as a preventive treatment. An ICD is a small machine similar to a pacemaker that is designed to correct arrhythmias.

It detects and then corrects a fast heart rate. The ICD constantly monitors the heart rhythm. When it detects a very fast or slow heart rhythm, it delivers energy (a small, but powerful shock) to the heart Promethazine Hydrochloride (Promethazine HCl)- Multum to cause the heart to beat in a normal rhythm again. The ICD also records the data Promethazine Hydrochloride (Promethazine HCl)- Multum each abnormal heartbeat, which can be viewed by the doctor using a special machine kept at the hospital.

The ICD may be used in patients who have survived sudden cardiac arrest and need their heart rhythms constantly monitored. It may also be combined with a pacemaker to treat other underlying irregular heart rhythms. Interventional Procedures or Surgery: For patients with coronary artery disease, an interventional procedure such as angioplasty (blood vessel repair) or bypass surgery may be needed to improve blood flow to the heart muscle and reduce the risk of SCD.

For patients with other conditions, such as hypertrophic cardiomyopathy or congenital heart defects, an interventional procedure or surgery may be needed to correct the problem. Other procedures may be used to treat abnormal heart rhythms, including electrical cardioversion and catheter ablation. When a heart attack occurs in the left ventricle (left lower pumping chamber of the heart), a scar forms. The scarred tissue may increase the risk of ventricular tachycardia.

The electrophysiologist (doctor specializing in electrical disorders of the heart) bioxtra determine the exact area causing the arrhythmia.



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