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The fat-soluble vitamins are vitamins A, D, E, and K. Each vitamin has unique characteristics and contributes to the overall health of an individual. These vitamins have complex absorption, metabolism, and distribution elements that provide protection to the cells in the body as well as many organs. Fat-soluble vitamins, once ingested and processed, are stored in the body for use. Most fat-soluble vitamins are obtained from fruits, vegetables, nuts, and animals., Competing Interests: Disclosure The author has nothing to disclose., (Copyright © 2020 Elsevier Inc. All rights reserved.)

Obstructive kidney disease is a common urologic diagnosis and includes kidney stones, polycystic kidney disease, and renal artery stenosis. Kidney stones are a common emergency department admission in the United States. Men are affected more than women. Polycystic kidney disease is a genetic renal disease that may not reveal symptoms until an individual reaches age 30 years. Renal artery stenosis contributes to decreased perfusion to the kidneys, which contributes to hypertension and end-stage renal disease., (Published by Elsevier Inc.)

Preventing 30-day readmissions to hospitals is a top priority in the era of health care reform. New regulations will be costly to health care facilities because of payment guidelines. The most frequently readmitted medical conditions are acute myocardial infarction, heart failure, and pneumonia. The transition from the hospital and into the home has been classified as a vulnerable time for many patients. During this time of transition patients may fail to fully understand their discharge instructions. Ineffective communication, low health literacy, and compliance issues contribute to readmissions. Telehealth and the use of technology may be used to prevent some readmissions., (Copyright © 2015 Elsevier Inc. All rights reserved.)