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.
Overall Time. Most LPN programs take from one year to 18 months to complete. The length of time you take will depend on the amount of time you are able to devote to study and your ability to complete the work in each of your classes.Most nursing schools offer flexible class schedules, which include nights and weekends.verall Time. Most LPN programs take from one year to 18 months to complete. The length of time you take will depend on the amount of time you are able to devote to study and your ability to complete the work in each of your classes.