1. Why are nitrate-free periods every 24 hours necessary for the patient onnitroglycerin therapy?: Answer To inhibit the development of tolerance 2. What does a low level of thyroid-stimulating hormone indicate?: Answer Hyperthroidism 3. What would be the best option to treat a newly diagnosed patient with a lowTSH level with?: Answer Propanolol (Inderal) 4. Spironoaldactone (Aldactone) has what mechanism of action (MOA)?: Answer Aldosterone antagonist 5. Heparin exertsitstherapeutic action by what?: Answer Upregulating the activity of oneof the body's natural anticoagulant molecules, antithrombin III 6. What physiologic action happens when the offending drug is administeredduring an anaphylactic reaction.: Answer Mast cells liberate large doses of histamine. 7. What are two systemic psoriasis medications?: Answer Photo-therapy and topicalcorticosteroids