https://www.selleckchem.com/products/ipa-3.html 5mg (2.5mL) 5% hyperbaric bupivacaine hydrochloride. Electrocardiographic (ECG) records were obtained both preoperatively and at 1, 5, and 10minutes after spinal block, and the QT, QTc, QTd, and corrected QTd (QTcd) intervals were estimated using Bazett's formula. There was no significant difference between the two groups within the QT and QTc intervals. QTcd measured after post-operative was significantly higher in Group II (P=.007). The results indicated that spinal anaesthesia may prolong the QTdc interval in patients with a gestational week of ≥39weeks undergoing cesarean section. The results indicated that spinal anaesthesia may prolong the QTdc interval in patients with a gestational week of ≥39 weeks undergoing cesarean section. Buprenorphine is an effective medication treatment for opioid use disorder (MOUD) but access is difficult for patients, especially in rural locations. To improve access, legislation, including the Comprehensive Addiction and Recovery Act (2016) and the Substance Use Disorder Prevention that Promotes Opioid Recovery and Treatment for Patients and Communities (SUPPORT) Act (2018), extended the ability to get a Drug Enforcement Administration (DEA) waiver to prescribe buprenorphine to treat opioid use disorder (OUD) to numerous types of clinicians. This study updates the distribution of waivered clinicians as of July 2020 and notes regional and geographic differences. Using the July 2020 Drug Enforcement Administration list of providers with a waiver to prescribe buprenorphine to treat OUD, we assigned waivered clinicians to counties in one of four geographic categories. We calculated the number of counties in each category that did not have a waivered clinician, available treatment slots, and the county provider to population ratios. The number of DEA-waivered clinicians more than doubled between December 2017 and July 2020 from 37,869 to 98,344. The availability of a clinician with a DEA