Question

In: Physics

Impedance plethysmography is a technique that can be used to detect thrombosis--the presence of clots in...

Impedance plethysmography is a technique that can be used to detect thrombosis--the presence of clots in a blood vessel--by measuring the electrical resistance of a limb, such as the calf of the leg. In a typical clinical setting, a current of 200 μA is passed through the leg from the upper thigh to the foot. The voltage is measured at two points along the calf separated by 13 cm.

Part A:

If the voltage measured is 17 mV, what is the resistance of the calf between the electrodes?

Part B:

If the average calf diameter between the electrodes is 12 cm, what is the average resistivity of this part of the leg?

Solutions

Expert Solution


Related Solutions

Design an indirect IF protocol that could be used to detect the presence of antibodies to...
Design an indirect IF protocol that could be used to detect the presence of antibodies to SARS CoV-2, the virus causing covid-19. Assume that the specificity of the antibodies from patients would be against epitopes on the spike proteins of the virus. Include both a description of the protocol and a diagram showing the steps of your protocol. (Draw the diagram, take a picture of it, and then insert that JPEG image into this word document).
The anticoagulant heparin is used for preventing blood clots of patients after surgery, and for the treat- ment and prevention of deep vein thrombosis.
"Sex","Age","Weight","Dose","Heparin" "Male",51,146.94,"High",-1.654 "Male",48,115.08,"High",1.489 "Male",65,83.54,"Low",1.757 "Male",44,94.94,"High",1.324 "Male",43,122.46,"High",-2.86 "Male",54,135.86,"Low",-3.55 "Male",44,116.91,"Low",-1.682 "Male",36,126.98,"High",-0.603 "Male",43,95.9,"High",1.58 "Male",55,127.79,"Low",-1.428 "Male",37,98.58,"High",1.345 "Male",53,121.99,"High",-0.58 "Male",46,74.96,"High",4.47 "Male",53,99.17,"High",0.674 "Male",46,78.35,"High",4.488 "Male",40,122.13,"High",-1.134 "Male",28,81.31,"High",2.617 "Male",37,134.13,"High",-1.895 "Male",39,84.23,"High",2.799 "Male",49,101.35,"Low",0.571 "Male",36,109.39,"Low",-0.41 "Male",48,90.31,"Low",1.116 "Male",40,108.31,"Low",-1.311 "Male",44,117.91,"High",-0.263 "Male",43,97.58,"Low",-1.211 "Male",42,116.8,"Low",-0.174 "Male",37,139.32,"Low",-3.19 "Male",41,108.24,"High",2.052 "Male",35,96.67,"High",0.653 "Male",37,162.38,"Low",-7.441 "Male",45,93.29,"High",1.58 "Male",38,100.41,"High",1.413 "Male",39,81.97,"Low",1.037 "Male",42,89.27,"Low",3.623 "Male",43,89.66,"High",1.49 "Male",40,158.19,"High",-4.324 "Male",37,118.59,"Low",-2.981 "Female",25,77.05,"High",3.94 "Female",38,120.97,"Low",0.666 "Female",42,83.59,"High",5.294 "Female",21,122.16,"Low",1.985 "Female",45,104.93,"High",3.339 "Female",42,70.12,"Low",3.86 "Female",44,92.88,"High",3.422 "Female",46,85.94,"Low",3.293 "Female",43,82.45,"High",4.074 "Female",45,95.56,"High",3.378 "Female",44,86.14,"Low",1.923 "Female",42,82.81,"High",3.494 "Female",51,142.11,"Low",-0.577 "Female",32,87.04,"Low",3.48 "Female",31,82.02,"High",4.136 "Female",59,100.19,"High",4.345 "Female",43,69.19,"High",7.576 "Female",34,106.71,"High",2.712 "Female",42,73.74,"High",3.608 "Female",57,115.93,"High",1.48 "Female",58,59.41,"High",6.555 "Female",43,96.76,"Low",2.277 "Female",39,106.94,"Low",2.377 "Female",43,100.03,"Low",2.377 "Female",35,113.35,"Low",0.049 "Female",39,84.42,"High",5.673 "Female",48,69.54,"Low",5.119 "Female",46,86.53,"High",3.85 "Female",40,123.97,"High",2.478 "Female",46,84.2,"High",2.878 "Female",41,91.71,"High",2.95 "Female",28,84.41,"High",3.88 "Female",45,107.26,"High",2.764 "Female",45,100.1,"High",2.806 "Female",49,80.98,"Low",4.686 "Female",51,94.32,"Low",1.479 "Female",43,91.91,"Low",1.756 "Female",37,91.22,"Low",1.803 "Female",49,68.84,"High",6.17 "Female",53,107.24,"Low",2.13 "Female",38,73.65,"High",4.419 "Female",43,71.33,"Low",3.795...
Describe the various methods used to detect the presence of drugs in the body, i.e. drug...
Describe the various methods used to detect the presence of drugs in the body, i.e. drug testing, and detail the strenghts and weaknesses of each method.
Using a coil of wire and an oscilloscope, explain how you can detect the presence of...
Using a coil of wire and an oscilloscope, explain how you can detect the presence of the Earth's magnetic field. Using a coil of wire and an oscilloscope, explain how you could show that a magnet is producing a magnetic field. A series LRC circuit is driven at a frequency which is much less than the resonant frequency with a sine wave voltage source V0sin(wt). What is the approximate voltage across the capacitor? Briefly explain A series LRC circuit is...
A company claims to have invented a hand-held sensor that can detect the presence of explosives...
A company claims to have invented a hand-held sensor that can detect the presence of explosives inside a closed container. Law enforcement and security agencies are very interested in purchasing several of the devices if they are shown to perform effectively. An independent laboratory arranged a preliminary test. If the device can detect explosives at a rate greater than chance would predict, a more rigorous test will be performed. They placed four empty boxes in the corners of an otherwise...
To detect the presence of harmful insects in farm fields, we can put up boards covered...
To detect the presence of harmful insects in farm fields, we can put up boards covered with a sticky material and examine the insects trapped on the boards. Which colors attract insects best? Experimenters placed six boards of each of four colors at random locations in a field of oats and measured the number of cereal leaf beetles trapped. The data is in the file Beetles.xlsx under the Quiz4 Resource folder. Analyze the data using a multiple linear regression model....
To detect the presence of harmful insects in farm fields, we can put up boards covered...
To detect the presence of harmful insects in farm fields, we can put up boards covered with a sticky material and examine the insects trapped on the boards. Which colors attract insects best? Experimenters placed six boards of each of four colors at random locations in a field of oats and measured the number of cereal leaf beetles trapped. The data is in the file Beetles.xlsx under the Quiz4 Resource folder. Analyze the data using multiple regression. Conduct the global...
To detect the presence of harmful insects in farm fields, we can put up boards covered...
To detect the presence of harmful insects in farm fields, we can put up boards covered with a sticky material and examine the insects trapped on the boards. Which colors attract insects best? Experimenters placed six boards of each of four colors at random locations in a field of oats and measured the number of cereal leaf beetles trapped. The data is in the file Beetles.xlsx under the Quiz4 Resource folder. Conduct a one-way ANOVA What is the ratio of...
To detect the presence of harmful insects in farm fields, we can put up boards covered...
To detect the presence of harmful insects in farm fields, we can put up boards covered with a sticky material and examine the insects trapped on the boards. Which colors attract insects best? Experimenters placed six boards of each of four colors at random locations in a field of oats and measured the number of cereal leaf beetles trapped. Conduct a one-way ANOVA Conduct a hypothesis test using the One Way ANOVA approach to compare the null hypothesis that all...
Describe an ELISA test to detect the presence of HIV antibodies in a patient.
Describe an ELISA test to detect the presence of HIV antibodies in a patient.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT