If some tissues could extract all the O2 dissolved in arterial blood so that no O2 remained in venous blood, and if cardiac output were 5500 mL/min, then-according to the Fick principle-the VO2 (oxygen consumption or delivery of dissolved O2 to the tissues) would be ml/min. The dissolved O2 in blood = 0.3 mL/100 mL blood.
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- In the human body, blood vessels can dilate, or increase their radii, in response to various stimuli, so that the volume flow rate of the blood increases. Assume that the pressure at either end of a blood vessel, the length of the vessel, and the viscosity of the blood re- main the same, and determine the factor Ralated/Rpormal by which the radius of a vessel must change in order to double the volume flow rate of the 79. blood through the vessel.Make a list of the different physiological equations: 1. Fick equation for oxygen diffusion = 2. Simple estimation for heart rate max = 3. Equation to convert absolute VO2 (Liters of 02/min) to relative VO2 (ml/kg/min) =Blood plasma flows with a rate of 0.4 cm³/s through a tube with a diameter d = 0.18 cm and length 1 = 1.8 m at a temperature of 20°C. The pressure at the tube entrance is P2 = 1.48 x 104 N/m2. If the temperature of the tube and plasma reaches 29°C, what is the tube entrance pressure P2' needed to maintain the flow rate and pressure at the tube exit constant. Consider 120°c = 1.81 mPa·s and n29°c = 1.28 mPa.s.
- decreases (43 As indicated in the figure below, as blood flows through capillaries, the blood mmHg at inlet to 15 mmHg at outlet). Let's assume that this decrease in pressure is a linear function of length (x) and can be described by the following equation: pressure Pc(x) = (43 – 28x) mmHg We can assume that the other hydrostatic and osmotic pressures do not change along the length of the capillary. Specifically, oncotic pressure in the capillary is 28 mmHg. In the interstitial fluid surrounding our capillaries, hydrostatic pressure in the interstitial fluid surrounding the capillaries is about –2.0 mmHg, and osmotic pressure of about 1.0 mmHg. At what length value of x does flow switch from going out of the capillaries into the surrounding tissue to into the capillaries from the surrounding tissue? Don't worry about the units of x. We can think of x as a fraction representing how far down the capillary we are relative to total length. For example, x of 0.5 would be halfway down the…Blood pressure is usually given as the ratio of the maximum pressure (systolic pressure) to the minimum pressure (diastolic pressure). For example a typical value for this ratio for a human would be 120/70, where the pressures are in mm Hg (millimeters of mercury, SG = 13.6). What would these pressures be in kPa (kilo Pascals)?: (a) systolic pressure (kPa), (b) diastolic pressure (kPa).It is not usually necessary to assess arterial blood gases when diagnosing and treating asthma. However, this information can sometimes be useful in severe asthma attacks. Suppose that a patient had a PO2 of 60mm hg and a PCo2 of 30mm hg when the patient first went to the emergency room. Explain how that could happen.
- The solubility of CO2 in blood is about 0.062 mL dL-1 mmHg-1. Arterial blood has a Pa_CO2 = 40 mm Hg and venous blood has PV_CO2 = 46 mm Hg, and cardiac output is 5 L min-1. A. Calculate the content of dissolved CO2 (in mL dL-1) in arterial and venous blood and how much CO2 is removed from the tissues and delivered to the lungs per minute. (Hint: CO2 content = solubility of CO2 * PCO2) (Hint: Rate of CO2 transport = cardiac output * (arterial CO2 content – venous CO2 content) B. If the volume diffusion rate of CO2 = 200 mL min-1 in the lung, what fraction of the total CO2 removal is accomplished through carrying dissolved CO2? C. Describe the effects of increased P CO2 and H+ concentration on the oxygen-hemoglobin dissociation curve. How are these effects adaptive for oxygen unloading in the tissues?Given: Capillaries are where the magic of gas diffusion happens. Capillaries are approximately 5-10 µm in diameter. Let’s pick an average value of 7.5 µm. A normal value of the diameter of an aortic artery is 15 mm. Blood has a density of 1.06 g/mL and flows with an average velocity of 0.33 mm/s. a. For each of the vessels, how rapidly would the blood have to flow in order to enter the regime of turbulent flow? (Answer a )infuse 100 ml 0.45% NS in 45 mins by infusion pump. calculate the flow rate in ml/hr.
- Assume the following pressures on the arterial end of a capillary: Plasma hydrostatic pressure = 35mmHg Plasma osmotic pressure = 26mmHg Interstitial hydrostatic pressure = 0mmHg Interstitial osmotic pressure = 1mmHg Given the pressures listed above, what is happening to fluid in this scenario? A. Fluid is leaving the capillary B. Fluid is entering the capillary C. Fluid is leaving the cell D. Fluid is entering the cellAn iv volume of 1500 ml os ordered to infuse at 76ml/hr. How long will it take for volume to infuse?Nizatidine injection (25 mg/mL) is supplied in 4-mL vials. The prescription states that for continuous infusion 'dilute 300 mg in 150 mL and give at a rate of 10 mg/hour'. If this procedure is adopted, calculate: (a) how many vials of nizatidine injection will be required (b) the flow rate (in mg/hour). NOTE: PLEASE GIVE THE ANSWER WITHIN 2 HOURS THANK YOU