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Cardiac asthma is the medical condition of intermittent wheezing, coughing, and shortness of breath that is associated with underlying congestive heart failure (CHF). [1] Symptoms of cardiac asthma are related to the heart's inability to effectively and efficiently pump blood in a CHF patient. [2]
In a person who does not tolerate exercise well, physical activity may cause unusual breathlessness , muscle pain , tachypnoea (abnormally rapid breathing), inappropriate rapid heart rate or tachycardia (having a faster heart rate than normal), increasing muscle weakness or muscle fatigue; or exercise might result in severe headache, nausea ...
While a fast heart rate caused by low blood pressure is more common, [18] a Bezold–Jarisch reflex has been described in 10% of people, where a slow heart rate is associated with low blood pressure. [10] A drop in blood pressure or shock (either distributive or cardiogenic) may cause the feeling of lightheadedness or loss of consciousness. [19]
Tachycardia, also called tachyarrhythmia, is a heart rate that exceeds the normal resting rate. [1] In general, a resting heart rate over 100 beats per minute is accepted as tachycardia in adults. [1] Heart rates above the resting rate may be normal (such as with exercise) or abnormal (such as with electrical problems within the heart).
min. fast heart rate, normal blood pressure: minimal II: 15–30% (0.75–1.5 L) fast heart rate, min. low blood pressure: intravenous fluids III: 30–40% (1.5–2 L) very fast heart rate, low blood pressure, confusion: fluids and packed RBCs IV >40% (>2 L) critical blood pressure and heart rate: aggressive interventions
In acute severe asthma, breathlessness may be so severe that it is impossible to speak more than a few words (inability to complete sentences). [5] [6] On examination, the respiratory rate may be elevated (more than 25 breaths per minute), and the heart rate may be rapid (110 beats per minute or faster). Reduced oxygen saturation levels (but ...
Signs of shock include cold, sweaty skin, as well as rapid breathing and a weak, rapid pulse. Call 911 if you notice signs of shock, as it needs immediate medical attention. 12.
Tachypnea, also spelt tachypnoea, is a respiratory rate greater than normal, resulting in abnormally rapid and shallow breathing. [1]In adult humans at rest, any respiratory rate of 12–20 per minute is considered clinically normal, with tachypnea being any rate above that. [2]