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.
Course Duration. An LPN program length usually takes a minimum of 12 months to 18 months. The completion of an LPN program will also depend on the time you have allotted for study and your ability to complete the course work provided.ome community colleges and nursing schools also offer classes in the evenings for LPN programs. This LPN program length is ideal for those who are working during the day in their full-time jobs. LPN students may also opt to study during the weekend.