These calculations estimate body fat based off height and weight, and there are many studies thatdraw correlations between BMI and the development of conditions such as hypertension, diabetes, and cardiovascular disease. This illustrates the overall utility of the tool. But basing the calculation on only two values present limitations because people have different body types evenin childhood and adolescence. This is not grounds to dismiss the use of BMI altogether but ratherto encourage its use in combination with other measurements such as waist circumference. Another problem with BMI is the fact that it doesn’t take into account the placement of adipose tissue. The accumulation of adipose tissue is a natural part of sexual maturation for females just as the accumulation of muscle mass is a natural part of sexual maturation in males. BMI calculations don’t take these factors into account. A study by Gläßer, Zellner, & Kromeyer-Hauschild, suggested that measuring both “BMI and waist circumference performed well in detecting excess fat mass in children and adolescents” (2010). This article also mentions using skinfold thickness as a determinant of adiposity, but it did not directly measure this strategy. Much of the available research focuses primarily on childhood obesity. This makes sense considering the higher prevalence of childhood obesity compared to children who are underweight. As of 2014, “17% of children were obese while only 3.5% were underweight” (Fryar, Carroll, & Ogden, 2016). Although this is the case, further research should be conducted to analyze the circumstances surrounding low weight in childhood and adolescence. Discussion of the Patient CaseThere is a lot to dissect from the scenario and a lot of questions that the provider would need to ask in order to best ascertain the best course of treatment for this patient. The first piece
4of information is the fact that the patient is underweight which means she has a “BMI less than 18.5 and her weight falls in the lowest 5thpercentile for her age and gender” (Ball et al, 2019). A
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- Summer '15
- Body mass index , Advanced Health Assessment and Diagnostics Reasoning