In medicine, the BUN-to-creatinine ratio is the ratio of two serum laboratory values, the blood urea nitrogen (BUN) (mg/dL) and serum creatinine (Cr) (mg/dL). Outside the United States, particularly in Canada and Europe, the term urea is often used. BUN only reflects the nitrogen content of urea (MW 28) and urea measurement reflects the whole of the molecule (MW 60), urea is approximately twice (60/28 = 2.14) that of BUN. In Canada and Europe the units are also different (mmol/L). The units of creatinine are also different (μmol/L), and this value is termed the urea-to-creatinine ratio. The ratio may be used to determine the cause of acute kidney injury or dehydration. The principle behind this ratio is the fact that both urea (BUN) and creatinine are freely filtered by the glomerulus; however, urea reabsorbed by the tubules can be regulated (increased or decreased) whereas creatinine reabsorption remains the same (minimal reabsorption). (Wikipedia).
Diagnosis of hypertension | Circulatory System and Disease | NCLEX-RN | Khan Academy
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-prep/mcat) for MCAT related content. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to
From playlist Circulatory system diseases | NCLEX-RN | Khan Academy
Septic shock: Diagnosis and treatment | Circulatory System and Disease | NCLEX-RN | Khan Academy
Created by Ian Mannarino. Watch the next lesson: https://www.khanacademy.org/test-prep/nclex-rn/rn-cardiovascular-diseases/rn-shock-2/v/hypovolemic-shock?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn Missed the previous lesson? https://www.khanacademy.org/test-prep/nclex-rn/rn-car
From playlist Circulatory system diseases | NCLEX-RN | Khan Academy
Design Matrix & Response Vector, The Cockcroft-Gault Formula
IMPORTANT NOTES: - the original experiment was conducted on adult male patients only, and therefore the formula presented in the video applies only to adult males. However, they mentioned that multiplying the result by a factor of 0.85 should suffice to make a reasonable approximation for
From playlist Summer of Math Exposition Youtube Videos
This is a short video tutorial on equivalent ratios. ✤ ✤ ✤ INTERACTIVE APPLETS AND WORKSHEETS ✤ ✤ ✤ http://fearlessmath.net ✤ ✤ ✤ FOLLOW ME ON TWITTER ✤ ✤ ✤ http://twitter.com/dhabecker
From playlist All about ratios and proportions
A Scientific Perspective on Evaluation of Transporters in Drug Development
Dr. Lei Zhang, Senior Advisor for Regulatory Programs and Policy in the Office of Clinical Pharmacology, Office of Translational Sciences, CDER, FDA, discusses scientific issues for evaluating drug transporters.
From playlist UCSF-Stanford CERSI Lecture Series
Using a set of points to determine if two triangles are similar to each other
👉 Learn how to determine whether two triangles are similar given the coordinate points of the vertices of the triangle. Two triangles are said to be equal when the corresponding angles of the triangles are congruent (equal) or when the corresponding side lengths are proportional. When give
From playlist Similar Triangles
playlist at: http://www.youtube.com/view_play_list?p=8E39E839B4C6B1DE https://sites.google.com/site/shaunteaches/ radius and diameter
From playlist Common Core Standards - 6th Grade
Introduction to Chemical Engineering | Lecture 17
Professor Channing Robertson of the Stanford University Chemical Engineering Department discusses biomedical engineering and the functions and anatomy of the kidney. Introduction to Chemical Engineering (E20) is an introductory course offered by the Stanford University Engineering Depar
From playlist Lecture Collection | Introduction to Chemical Engineering
What is multiple myeloma? | Hematologic System Diseases | NCLEX-RN | Khan Academy
Created by Matthew McPheeters. Watch the next lesson: https://www.khanacademy.org/test-prep/nclex-rn/hematologic-system-diseases/rn-plasma-cell-dyscrasias/v/what-is-waldenstrom-macroglobulinemia?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn Missed the previous lesson? https://www.k
From playlist Hematologic system diseases | Health & Medicine | Khan Academy
Three ways to solve a proportion
This is a short video tutorial on three ways to solve a proportion. For interactive applets, worksheets, and more videos go to http://www.mathvillage.info
From playlist All about ratios and proportions
This is a short video tutorial on unit ratios...also called unit rates. For interactive applets, worksheets, and more videos go to http://www.mathvillage.info
From playlist All about ratios and proportions
This video introduces the Golden ratio and provides several examples of where the Golden ratio appears. http:mathispower4u.com
From playlist Mathematics General Interest
DEFCON 18: The Anatomy of Drug Testing 3/4
Speaker: Jimi Fiekert This talk will cover most of the basics and some of the advanced principles/procedures to how drug screening works. Areas of the subject that will be covered will be the legality of drugs, the legality of drug testing, methods of drug testing, sample types, and r
From playlist DEFCON 18-3
DEFCON 18: The Anatomy of Drug Testing 4/4
Speaker: Jimi Fiekert This talk will cover most of the basics and some of the advanced principles/procedures to how drug screening works. Areas of the subject that will be covered will be the legality of drugs, the legality of drug testing, methods of drug testing, sample types, and r
From playlist DEFCON 18-3
Proportion - how to see if ratios are in proportion
Ratios are said to be in proportion if they equal. This video looks at how to simply see if two ratios are in proportion - that is whether they are equivalent. We then look at how to easily find out how much of a quantity is required to keep something in proportion. To support free math
From playlist Ratios
Showing you have a proportion for similar triangle given points
👉 Learn how to determine whether two triangles are similar given the coordinate points of the vertices of the triangle. Two triangles are said to be equal when the corresponding angles of the triangles are congruent (equal) or when the corresponding side lengths are proportional. When give
From playlist Similar Triangles
Ratios as Fractions - The GCSE Questions Students Struggle With! | Grade 7 Series | GCSE Maths Tutor
A video revising the techniques and strategies for solving problems with ratios as fractions (Higher Only). This video is part of the Ratio & Proportion module in GCSE maths, see my other videos below to continue with the series. Revision videos: The Entire GCSE in Only 2 Hours!! Higher
From playlist GCSE Maths Videos
Solving a proportion using the cross product ex 7, 8/5 = (4/3x)
👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we usually cross-multiply the two ratios and then solve for
From playlist How to Solve a Proportion