NR565 Final Study Guide with complete solutions.

NR565 Final Study Guide with complete solutions Be familiar with the interactive activities throughout course modules. You could see variations of those same questions on your exams. Week 5  Thyroid o Diagnosis & Evaluation  What labs are used to diagnose? - Serum TSH levels = most sensitive for detecting hypothyroidism - TSH level 6 is indicative of hypothyroidism - 0.3-6 is normal TSH level - Measuring total or free T4 (free T4 is preferred)  Timeframe for re-check of labs after starting levothyroxine - Need to recheck TSH levels 6-8 weeks after initiating therapy AND at any dosage change - Need to monitor therapeutic effects and takes 1 month to establish plasma levels  Signs and symptoms of hypo and hyperthyroidism - HYPOTHYROIDISM - Can be caused by sx removal of thyroid - Insufficient iodine in diet - Autoimmune – Hashimoto’s dx - Tx is lifelong - T3 and T4 levels going to be low and TSH will be high o Puffy and pale face o Cold/dry skin o Brittle hair o Hair loss o HR and temp lowered (bradycardia) o Lethargy and fatigue o Intolerance to cold o Weight gain o Constipation o Depression - HYPERTHRYOIDISM o Graves’ disease or toxic nodular goiter (plummer dz)  Overactive thyroid  Excessive thyroid secretion due to autoimmune process attacking thyroid o TSH levels going to be low and T3/T4 going to be high o Rapid/ strong HR o Increased risk of dysrhyt