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Healthy individuals at sea level usually exhibit oxygen saturation values between 96% and 99%, and should be above 94%. At 1,600 meters' altitude (about one mile high) oxygen saturation should be above 92%. [11] An SaO 2 (arterial oxygen saturation) value below 90% causes hypoxia (which can also be caused by anemia).
The QT interval is a measurement made on an electrocardiogram used to assess some of the electrical properties of the heart.It is calculated as the time from the start of the Q wave to the end of the T wave, and approximates to the time taken from when the cardiac ventricles start to contract to when they finish relaxing.
A child aged 1–3 years old can have a heart rate of 80–130 bpm, a child aged 3–5 years old a heart rate of 80–120 bpm, an older child (age of 6–10) a heart rate of 70–110 bpm, and an adolescent (age 11–14) a heart rate of 60–105 bpm. [12] An adult (age 15+) can have a heart rate of 60–100 bpm. [12]
As the pressure in the cuff is the same as the pressure produced by the heart, some blood will be able to pass through the upper arm when the pressure in the artery rises during systole. This blood flows in spurts as the pressure in the artery rises above the pressure in the cuff and then drops back down beyond the cuffed region, resulting in ...
After a follow-up of a median of eight years, about 5% of study participants developed atrial fibrillation, about 2.1% developed heart failure, almost 2% had a heart attack, and a little less than ...
In patients with UA/NSTEMI, the TIMI risk score is a prognostication scheme that categorizes a patient's risk of death and ischemic events and provides a basis for therapeutic decision making. [1] TIMI Score Calculation (1 point for each): Age ≥ 65 years; Known coronary artery disease (CAD) (stenosis ≥ 50%) ≥ 3 risk factors for CAD*
Quintuple meter or quintuple time is a musical meter characterized by five beats in a measure. They may consist of any combination of variably stressed or equally stressed beats. Like the more common duple , triple , and quadruple meters, it may be simple , with each beat divided in half, or compound , with each beat divided into thirds.
Heart rate is the frequency of the heartbeat measured by the number of contractions of the heart per minute (beats per minute, or bpm). The heart rate varies according to the body's physical needs, including the need to absorb oxygen and excrete carbon dioxide .