USMLE Forums

USMLE Forums (https://www.usmle-forums.com/)
-   USMLE Step 1 Forum (https://www.usmle-forums.com/usmle-step-1-forum/)
-   -   Calculation of GFR! (https://www.usmle-forums.com/usmle-step-1-forum/3354-calculation-gfr.html)

Kabutar111 07-20-2010 02:38 AM

Calculation of GFR!
 
:notsure:
During an experiment, the following data were obtained from an anesthetized dog: mean glomerular capillary hydrostatic pressure – 45, mean Bowman space hydrostatic pressure – 12, mean glomerular capillary oncotic pressure – 23, mean Bowman space oncotic pressure – 0, coefficient of filtration (Kf) – 3, renal blood flow – 200, Hct – 40%. Which of the following best represents the glomerular filtration rate in this animal?
(a) 30 (b) 50 (c) 90 (d) 120 (e) 180

khushboo 07-20-2010 03:23 AM

A 30
 
its A...30

GFR= kf((pg-pb)-(Ig-ib))
= 3(45-12-23)
= 3(10)
= 30
:)

doctorF 07-20-2010 10:25 AM

i l go for A- 30

Seetal 07-21-2010 04:30 PM

yes they are both right. answer is A.

although i have a question, how long did it take u guys to calculate the answer? it took me a good minute as i had to write down which was Pc, Pi, etc... i feel like a real grandma taking so much time to answer.

ecgram 07-22-2010 10:59 AM

yup A

i just calculated in my mind , heheh i m good at math so didnt take more than 35 sec ,but i dont think 1 min is a prob still u did it on time ( less than whatever time got for 1 question)


All times are GMT -8. The time now is 12:04 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.

USMLE® & other trade marks belong to their respective owners, read full disclaimer
USMLE Forums created under Creative Commons 3.0 License. (2009-2019)