Iodine deficiency during pregnancy may result in cretinism (mental retardation in children), deafness, autism, and delayed brain development and is the leading cause of preventable mental retardation. As the bodyâs iodine levels fall, hypothyroidism may develop, since iodine is essential for making thyroid hormone. While this is uncommon in the United States, iodine deficiency is the most common cause of hypothyroidism worldwide.
1 Practice nursing for a minimum of 960 hours during the previous five years. 2  Successfully complete an approved re-entry program within the two years preceding renewal. 3  Graduate from an OSBN-approved nursing program within the past five years.
Education Requirements. In order to become a practicing LPN, you'll need a high school diploma or GED, and then you'll need to graduate from an accredited LPN program. LPN programs generally include one year of coursework and practical application at a hospital, vocational technical school or community college.PN Licensing. To earn an LPN license, you must pass a state administered nursing examination, called the NCLEX-PN. To qualify to sit for the NCLEX-PN exam, you must first complete a LPN/LVN education program that is approved by your state's Board of Nursing.