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If the heart rate increases above 160 beats per minute (bpm), cardiac output may initially rise due to the increased number of heartbeats. However, at such high rates, the diastolic filling time (the time the heart has to fill with blood) decreases, which can lead to reduced stroke volume. As a result, cardiac output may plateau or even decline if the heart cannot effectively pump enough blood due to inadequate filling, potentially leading to decreased oxygen delivery to tissues.
What else can I help you with?
What would happen if you mix oil sand and water in a cup?
Sand is at the bottom; water above and above water the oil.
Why do melting happen?
Ice will melt if the surrounding temperature rising above freezing point.
What happens to the pressure at the top of a container if the preasure at the bottom is increased?
The pressure at the top of the container will also increase if the pressure at the bottom is increased. This is because pressure in a fluid increases with depth due to the weight of the fluid above creating a greater force pushing down.
What may happen when an ojbect receives unbalanced forces a the object changes directions b the object changes speed c the object starts to move or d all of the above?
D. all of the above.
What could cause increase in the number of band cells to be increased above normal?
An increased number of band cells above normal levels could indicate a response to infection or inflammation, conditions such as sepsis or severe bacterial infections. It may also be seen in certain types of leukemia or bone marrow disorders. Further evaluation by a healthcare provider may be needed to determine the underlying cause.
What are contraindications for cardiac positioning?
Some patients cannot tolerate a 45 degree sitting angle which is normal cardiac positioning. They experience a sharp drop in brain blood pressure (hypotension) or increased heart rate (tachycardia) when the head is elevated above a minimal prone position.
What is the portion of the stomach protruding above the cardiac sphincter?
the fundus
What would happen if the capsular hydrostatic pressure were increased above normal'?
Net filtration would decrease. Source Mastering A and P book, chapter 25.
What would happen if the capsular hydrostatic pressure increased above normal?
Net filtration would decrease. Source Mastering A and P book, chapter 25.
How much 54mg Concerta to overdose?
Taking anywhere above 13 would be considered an overdose, anywhere above 19 and you will most likely be hospitalized, and taking 24 or more pills will result in cardiac arrhythmia or cardiac arrest.
How fast does blood go to your heart?
you are asking about "cardiac output," which is the amount of blood that gets pumped out of the heart, usually given in liters per minute (remember that since the circulatory system is a closed loop, volume of blood pumped out must equal blood coming back to the heart, assuming you are not actively bleeding). Cardiac output in a normal adult is 5-6 L/min at rest, but can increase to 25 L/min or more during strenuous exercise. Cardiac output (CO) is equal to the Stroke Volume (SV, or the volume of blood pumped with each heart beat) times the heart rate (number of beats per minute). If you have taken physics, you should be familiar with Ohm's law: V=IR. There is also a correlating equation for the circulatory system, which is Mean Arterial Blood Pressure = Cardiac Output times Systemic Vascular Resistance, or MAP = CO x SVR. You can think of MAP as the voltage, CO as the current, and SVR as resistance. This equations relates your cardiac output to your blood pressure and your vascular resistance (how clamped down or open your blood vessels are). Your body is set up to try to maintain a constant blood pressure by adjusting the vascular resistance or cardiac output (which in turn is dependent on stroke volume and heart rate). One good example is active exercise: the blood vessels going to your muscles open up to allow for increased blood flow, which decreases overall vascular resistance. According to the relation above, decreased SVR with no change in CO will cause your blood pressure to drop - enough of a drop in blood pressure will cause you to pass out. Therefore, your cardiac output MUST increase to maintain a constant blood pressure. During exercise, I'm sure you have noticed that both your heart rate increases, but your heart is also beating more strongly, which pumps more blood with each beat.
How likely are you to have cardiac arrest at 26?
The chances are unlikely (but not impossible). The older you are, the higher the chances. PS. Cardiac arrest is not the same as heart attack (however, what I said above applies to both).
The sum of the digits of a two-digit number is 9 When the digits are reversed the number is increased by 63?
Possibility of two digit no whose sum is 9 18,27,36,45,54,63,72,81 Now add 63 to each no mentioned above output is 81,90,99,108,117,126,135,144 See 18 and 81. If you reverse 18 . 81 will come which is the no increased by 63. 18 is
What is normal urine output for an elderly person?
You should be aiming for a urine output above 1 ml/kg/hr
Do volcanoes happen above or below sea level?
They can happen in both
What is the normal urine output per hour in adult person after surgery?
You should be aiming for a urine output above 1 ml/kg/hr
What are the recommended point for cardiac compression?
In adult CPR, cardiac compressions should be performed approximately 2 finger widths above the xiphoid. For children, it should be performed on a line drawn between the nipples.
