Help Pharmacology question!!!? -

Which of the following is NOT true of histamine? a. It is a chemical found in body tissue that protects against environmental factors. b. Its greatest concentration is found in the skin, gastrointestinal tract, and lungs. c. Its principal action is vascular dilation and contraction of smooth muscles of the respiratory and gastrointestinal tract. d. It is not a problem with most upper respiratory inflammatory diseases. e. Sneezing, itching, watery eyes, and bronchoconstriction are often the result of histamine release. Which of the following is NOT true of diuretics? a. They block the reabsorption of sodium and chloride. b. They may be used alone or with other medications to treat hypertension. c. Electrolyte levels are not a problem when using diuretics. d. They are classified by their action in the nephron of the kidney. e. All of the above statements are true. Which of the following is NOT true of cromolyn sodium? a. It relieves allergic reactions after exposure to allergens. b. It relieves allergic reactions before exposure to allergens. c. It takes about a week for it to be effective. d. It should be used throughout the allergy season. e. It is not effective against nonallergic rhinitis. Which of the following is NOT a decongestant agent? a. phenylephrine (Neo-Synephrine) b. pseudoephedrine (Sudafed/Afrin) c. chlorpheniramine (Chlortrimeton/Teldrin) d. ephedrine e. epinephrine (Primatene/adrenalin) Which of the following is NOT true of nitroglycerin? a. The side effects include headache, hypotension, and tachycardia. b. When using sublingual nitroglycerin, the patient should have a moist mouth so that the medication will dissolve. c. It is a stable medication and is effective until the expiration date whether the bottle has been opened or not. d. When using transdermal nitroglycerin, the medication should be worn no more than 10-12 hours per day to avoid developing tolerance. e. Prophylactic nitroglycerin should be discontinued gradually.

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1. D (but am not positive) 2. c 3. c (I think) 4. d 5. E 6. C (only lasts about 6 months once opened) not very stable at all