Monday, November 30, 2009

Friday, November 20, 2009

Thursday, November 19, 2009

Serum Osmolality Gap Calculator

Calculates Serum Osmolality and then Calculates Gap from Measured Osmolality

Calculated Osmolality = 2*Na + (Urea/2.8) + (Glucose/8) + (Ethanol/4.6)
Osmolal Gap = Measured Osmolality - Calculated Osmolality

Serum Osmolality Calculator

Tuesday, October 06, 2009

Tuesday, September 29, 2009

Monday, August 17, 2009

History Note Writer

Created for Vista, Epic, and other EHRs, this page will create standard notes for office visits or daily progress notes. It will automatically fill in the subjective, objective, assessment, and plan. Hit the HPI and it will ask for age, chief complaint, duration, and associated symptoms. Press the physical button to enter the standard exam.


Sunday, August 02, 2009

Healthcare Reform 2009

New York Times coverage:



Medicare has 45 million members and Medicaid has 59 million members.

Healthcare costs increased significantly after the passage of Medicare and Medicaid in 1965.

Healthcare spending reached $2 Trillion in 2006.



Tuesday, July 28, 2009

Tuesday, July 21, 2009

Predicted Height Calculator

Calculates child's height based on parent's height in inches: Predicted Height Calculator.

Sunday, July 19, 2009

Google search results for ipod touch

Searching for "ipod touch" on Google (GOOG) showed some recent changes in advertising strategy. Amazon is no longer allowing associates to directly link from Google to an affiliate landing page. Instead, affiliates have to place a Google advertisement for their own web page with an Amazon link. After this change, the first spot on the advertising panel on the right belongs to Amazon and links directly to their page. Another interesting point is that Microsoft's (MSFT) Bing is advertising it's cash back program for the "ipod touch" on Bing. Recently, there has been a spike in the bid price for these advertisments, and this may have been due to Microsoft and Amazon entering the bidding war for placement. I am not sure how many product advertisments Microsoft is placing on Google, but they're sending  cash to their competitor with every click. 

Saturday, July 18, 2009

Gastroenterology Vignettes

American Journal of Gastroenterology Vignettes

Ipod Touch Applications

Free Applications

Best Medical:

Best Finance:
AOL Finance
with Real Time Quotes

Best Phone:

Monday, July 13, 2009

FeNa Calculator

Calculates the fractional excretion of sodium based on urine sodium, plasma sodium, urine creatinine, and serum creatinine. Determines the cause of acute renal failure.


FeNa < 1 % - prerenal failure: dehydration more than chf

FeNa > 2 % - intrinsic disease: acute tubular necrosis, vasculitis, interstitial nephritis



1. Le, Tao, Vikas Bhushan, Robert W. Grow, and Veronique Tache.First Aid for the USMLE Step 3. 2nd ed. New York: McGraw Hill, 2008. Print.



Sunday, April 05, 2009


Personally, I feel like a majority of inpatients have diabetes. Optimal blood sugar control has been proven to help recovery from multiple diseases including heart disease. Understanding how to initiate insulin and its adjustment is a skill which can be used daily. An endocrine consult month would help to learn insulin management as well as deal with more esoteric concepts as dealing with panhypopituitarism

chf and copd

Knowing how to deal with chf and copd hospital admissions should help you carry through 60% of intern year.

A new personal record for sleep

Got home from a 30 hour overnight call shift at 1 PM. Went to sleep around 3 PM. Got out of bed at 8:30 AM the next day with a few interruptions in between. That's 17.5 hours. I should write a little more about internship.

Wednesday, March 11, 2009

Sunday, March 01, 2009

Parkland Burn Formula for the iPhone

Parkland Burn Formula for iPhone
For burn victims, fluid resucitation is critical within the first 24 hours. The amount of fluid resucitation can be determined from the percentage of body surface area (%BSA) involved. "Rule of 9's" can estimate the %BSA.

The Parkland Formula is as follows.
Fluid for first 24 hours (ml) = 4 * Patient's weight in kg * %BSA
Afterwards, the first half of this amount is delivered in the first 8 hours, and the remaining half is delivered in the remaining 16 hours.

The "Rule of 9's" is as follows.
Head and each arm = 9%
Back and chest each = 18%
Each leg = 18%
Perineum = 1%

Medicine Web Calculators for the iPhone

Medicine Calculators
Insulin NPH Calculator
Calculates morning and night time insulin dose based on weight in pounds. The conversion factor requires clinical judgement depending on the type of diabetes, body weight, and insulin resistance. The conversion factor can range from 0.3 to 0.8. Also calculates daily insulin glargine, ie Lantus, dose based on total NPH dose. Conversion factor requires clinical judgement.

Seek the advice of a licensed physician. Patients should not adjust their own insulin regimen. Hypoglycemia, also known as low blood sugar, can be fatal.

BMI Calculator for iPhone
Fill in your height and weight, either in inches and pounds or meters and kilograms, and this BMI (Body Mass Index) calculator will show your BMI. It will also show an ideal body weight range for the height.
A normal BMI is between 18.5 and 24.9. A BMI less than 18.5 indicates a low weight for a specific height, while a BMI greater than 24.9 indicates a high weight for a specific height. The safest and healthiest way to lose weight is to slightly decrease calorie consumption and to excercise. A 3500 calorie deficit per week should decrease weight by 1 pound per week. Eating more lean meats and fish as well as eating more vegetables can help with weight loss. Consult a physician before starting a diet and excercise program

Simple design for small screens: iPhone, gPhone, Bold.
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