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2. Cold shock response - Wikipedia

   en.wikipedia.org/wiki/Cold_shock_response

   The cold water can cause heart attack due to severe vasoconstriction, [2] where the heart has to work harder to pump the same volume of blood throughout the arteries. For people with pre-existing cardiovascular disease , the additional workload can result in myocardial infarction and/or acute heart failure , which ultimately may lead to a ...

3. Precordial catch syndrome - Wikipedia

   en.wikipedia.org/wiki/Precordial_catch_syndrome

   The underlying cause is unclear. Some believe the pain may be from the chest wall or irritation of an intercostal nerve. [1] [2] Risk factors include psychological stress. [2] The pain is not due to the heart. Diagnosis is based on the symptoms. Other conditions that may produce similar symptoms include angina, pericarditis, pleurisy, and chest ...

4. Hypovolemic shock - Wikipedia

   en.wikipedia.org/wiki/Hypovolemic_shock

   Class 1: Volume loss up to 15% of total blood volume, approximately 750 mL. Heart rate is minimally elevated or normal. Typically, there is no change in blood pressure, pulse pressure, or respiratory rate. [3] Class 2: Volume loss from 15% to 30% of total blood volume, from 750 mL to 1500 mL. Heart rate and respiratory rate become elevated (100 ...

5. Angina - Wikipedia

   en.wikipedia.org/wiki/Angina

   Chest pain lasting only a few seconds is normally not angina (such as precordial catch syndrome). Myocardial ischemia comes about when the myocardium (the heart muscle) receives insufficient blood and oxygen to function normally either because of increased oxygen demand by the myocardium or because of decreased supply to the myocardium.

6. 11 causes of chest pain that aren't a heart attack - AOL

   www.aol.com/news/11-causes-chest-pain-arent...

   There are many chest pain causes (including a heart attack) that can lead to similar types of discomfort, and it can be really tricky to know what you're actually dealing with. 11 causes of chest ...

7. This Is the No.1 Sign of Heart Disease in Men - AOL

   www.aol.com/no-1-sign-heart-disease-194100308.html

   Symptoms that get worse or chest pain lasting more than a few minutes, dizziness, fainting, or shortness of breath should prompt you to take immediate action and call 911, Dr. Dal Col emphsizes.

8. Shock (circulatory) - Wikipedia

   en.wikipedia.org/wiki/Shock_(circulatory)

   The classic symptoms include a slow heart rate due to loss of cardiac sympathetic tone and warm skin due to dilation of the peripheral blood vessels. [20] This term can be confused with spinal shock which is a recoverable loss of function of the spinal cord after injury and does not refer to the hemodynamic instability.)

9. Hypovolemia - Wikipedia

   en.wikipedia.org/wiki/Hypovolemia

   Hypovolemia, also known as volume depletion or volume contraction, is a state of abnormally low extracellular fluid in the body. [1] This may be due to either a loss of both salt and water or a decrease in blood volume. [2] [3] Hypovolemia refers to the loss of extracellular fluid and should not be confused with dehydration. [4]