Question

What radius needle should be used to inject a volume of 469 cm3 of a solution...

What radius needle should be used to inject a volume of 469 cm3 of a solution into a patient in 31 min? Assume the length of the needle is 2.5 cm and that the solution is elevated 1.0 m above the point of injection. Further, assume the viscosity and density of the solution are those of pure water, and that the pressure inside the vein is atmospheric. (The density of water is 1.00 ✕ 103 kg/m3.)

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 3 cm long needle is used to inject a 0.3 L of a solution located...
A 3 cm long needle is used to inject a 0.3 L of a solution located 70 cm above a patient over a time of 25 minutes. Assume that the viscosity of this solution is 1.1 mPa⋅s and its density is 970kg/m3. a) If the vein`s pressure is assumed to be at atmospheric pressure, what will be the difference in the input and output pressures across the needle in mmHg? b) What is the flow rate of the solution in...
Topic: Fluid mechanics One patient receives saline solution injected into a vein through a needle 4...
Topic: Fluid mechanics One patient receives saline solution injected into a vein through a needle 4 cm long and 0,2 mm radius. The saline solution has a density and viscosity approximately equal to the water at ambient temperature and exits from a tank located 1m above the needle a)Find the saline solution pressure at the needle inlet b)Knowing that the blood pressure in the vein is about 2000 Pa above atmospheric pressure, calculate the time it takes to exhaust the...
An intravenous (IV) system is supplying saline solution to a patient at the rate of 0.07...
An intravenous (IV) system is supplying saline solution to a patient at the rate of 0.07 cm3/s through a needle of radius 0.2 mm and length 4.64 cm. What gauge pressure (in Pa) is needed at the entrance of the needle to cause this flow? Assume that the viscosity of the saline solution to be the same as that of water, η = 1.0*10-3 Pa-s, and that the gauge pressure of the blood in the vein is 1500 Pa. Enter...
Saline solution is delivered into the vein of a patient through a needle. The saline solution...
Saline solution is delivered into the vein of a patient through a needle. The saline solution has a viscosity of 0.00037 Pa.s, a density of 1,060 kg/m3, and is delivered through a 7.0-cm long needle with an internal diameter of 0.24 mm directly into the patient’s vein in which the blood pressure is 130 mmHg (1 mmHg=133.4 Pa). The saline solution must be delivered at a flow rate of 0.04×10-6 m3/s. How high must the saline solution be suspended in...
To deliver an intravenous solution at 0.20 L/hr to a patient through a needle, a pressure...
To deliver an intravenous solution at 0.20 L/hr to a patient through a needle, a pressure difference between the pressure where the solution enters the needle and the patient’s blood pressure is needed. If the needle has a radius of 1.5 x 10-4 m and is 0.025 m long, assuming a viscosity of 1.0 x 10-3 (N/m2) s for the solution, what must be the difference between solution pressure and the pressure in the vein of the patient? (A) 3.1...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT