OverviewCardiogenic shock is a life-threatening condition in which your heart suddenly can't pump enough blood to meet your body's needs. The condition is most often caused by a severe heart attack, but not everyone who has a heart attack has cardiogenic shock. Show
Cardiogenic shock is rare. It's often deadly if not treated immediately. When treated immediately, about half the people who develop the condition survive. SymptomsCardiogenic shock signs and symptoms include:
Symptoms of a heart attackBecause cardiogenic shock usually occurs in people who are having a severe heart attack, it's important to know the signs and symptoms of a heart attack. These include:
Seek medical attention quickly when having these signs or symptoms to decrease your risk of developing cardiogenic shock. When to see a doctorGetting heart attack treatment quickly improves your chance of survival and reduces damage to your heart. If you're having symptoms of a heart attack, call 911 or other emergency medical services for help. If you don't have access to emergency medical services, have someone drive you to the nearest hospital. Don't drive yourself. Sign up for free, and receive heart transplant and heart failure content, plus expertise on heart health. To provide you with the most relevant and helpful information, and understand which information is beneficial, we may combine your
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e-mail. CausesIn most cases, a lack of oxygen to your heart, usually from a heart attack, damages its main pumping chamber (left ventricle). Without oxygen-rich blood flowing to that area of your heart, the heart muscle can weaken and go into cardiogenic shock. Rarely, damage to your heart's right ventricle, which sends blood to your lungs to get oxygen, leads to cardiogenic shock. Other possible causes of cardiogenic shock include:
Risk factorsIf you have a heart attack, your risk of developing cardiogenic shock increases if you:
ComplicationsIf not treated immediately, cardiogenic shock can lead to death. Another serious complication is damage to your liver, kidneys or other organs from lack of oxygen, which can be permanent. PreventionThe best way to prevent cardiogenic shock is to make lifestyle changes to keep your heart healthy and your blood pressure in check.
If you have a heart attack, quick action can help prevent cardiogenic shock. Seek emergency medical help if you think you're having a heart attack. Feb. 09, 2021 How do changes in PO2 affect the oxygen saturation of haemoglobin?As the PO2 decreases, hemoglobin saturation will eventually fall rapidly, at a PO2 of 40 mmHg hemoglobin is 75% saturated. Meanwhile, at a PO2 of 25 mmHg, hemoglobin is 50% saturated. This level is referred to as P50, where 50% of heme groups of each hemoglobin have a molecule of oxygen bound.
How does hemoglobin affect oxygen saturation?The blood hemoglobin concentration is determinant of oxygen delivery. In anemic patients, oxygen delivery decreases and oxygen extraction is increased. This leads to decreased venous hemoglobin saturation and a lower tissue oxygen saturation.
What is the purpose in monitoring a patients oxygen saturation?Purpose and uses
The purpose of pulse oximetry is to see if your blood is well oxygenated. Medical professionals may use pulse oximeters to monitor the health of people with conditions that affect blood oxygen levels, especially while they're in the hospital.
What is arterial oxygen saturation?Arterial oxygen saturation (SaO2) is a measure of hemoglobin oxygenation in the arterial compartment of the circulatory system. It is not a measure of the total oxygen content in the arterial blood because a small fraction of oxygen (about 2%) is dissolved in the plasma.
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