Episode 57 – Weight and Calculate w/Lynn Lamkin

 

How do you calculate your drug dosages? What do you base it on? In this podcast episode, we are joined by Lynn Lamkin, EM pharmacist, to discuss weight based versus non-weight based drug dosages. We also breakdown when true body weight (TBW), ideal body weight (IBW), lean body weight (LBW) or adjusted body weight (ABW) is a more appropriate option.

Weight Calculations

True Body Weight (TBW): No calculation needed

Body Mass Index (BMI): (TBW(lbs)/2.25)/(height(in)/39.37)2

Lean Body Weight (LBW): Female: (9270xTBW)/(8780+(244xBMI), Male: (9270xTWB)/(6680+216xBMI)

Ideal Body Weight (IBW): Female: [2.3 x (height-60)]+45, Male: [2.3 x (height-60)] + 50

Adjust Body Weight (ABW): IBW + [0.4x(total body weight-IBW)]


Guest

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Lynn Lamkin is an emergency medicine pharmacy specialist at Clark Memorial Hospital in Jeffersonville, Indiana.  Since graduating from Purdue College of Pharmacy in 2007, she has started new practice sites at two separate community hospitals, including her current institution. Additionally, she has promoted significant expansion of  pharmacist coverage in the emergency department, and established a PGY2 emergency medicine residency at University of Louisville Hospital.  She holds academic appointments at multiple  colleges of pharmacy, as well as University of Louisville Medical School. Over the course of her career, she has delivered presentations at the local and state level highlighting anticoagulant reversal, pharmacist impact on human trafficking, and immunization updates. Her current areas of research and practice interest include emergency preparedness, pharmacist practice expansion in the emergency department, and optimizing transitions of care for indigent populations.


Avidan, M. (2019). Faculty Opinions recommendation of Clinical practice guidelines for the prevention and management of pain, agitation/sedation, delirium, immobility, and sleep disruption in adult patients in the ICU. Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature. doi:10.3410/f.733825200.793559140

Comparison of Dopamine and Norepinephrine in Shock. (2010). New England Journal of Medicine, 362(24), 2328-2331. doi:10.1056/nejmc1003900

High versus Low Blood-Pressure Target in Septic Shock. (2014). New England Journal of Medicine, 371(3), 282-284. doi:10.1056/nejmc1406276

Kotecha, A. A., Vallabhajosyula, S., Apala, D. R., Frazee, E., & Iyer, V. N. (2018). Clinical Outcomes of Weight-Based Norepinephrine Dosing in Underweight and Morbidly Obese Patients: A Propensity-Matched Analysis. Journal of Intensive Care Medicine, 35(6), 554-561. doi:10.1177/0885066618768180

Vadiei, N., Daley, M. J., Murthy, M. S., & Shuman, C. S. (2016). Impact of Norepinephrine Weight-Based Dosing Compared With Non–Weight-Based Dosing in Achieving Time to Goal Mean Arterial Pressure in Obese Patients With Septic Shock. Annals of Pharmacotherapy, 51(3), 194-202. doi:10.1177/1060028016682030

&na;. (2008). Vasopressin Versus Norepinephrine Infusion in Patients With Septic Shock. Survey of Anesthesiology, 52(6), 276-277. doi:10.1097/01.sa.0000318644.58626.23

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