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4 Cards in this Set
- Front
- Back
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A 45-yr old patient who has volvolus and about to go into surgery. He also has a severe case of open-angle glaucoma. To treat his glaucoma, which of the following would you most like prescribe?
a/ Bethanechol b/ Atropine c/ Pilocarpine d/ Oxotremorine e/ Methacholine |
c/ Pilocarpine (small dose eye-drop)
- Bethanechol has contraindication in bowel obstruction. - Atropine makes it worse - Oxotremorine can be used but it stimulates GI peristalsis more readily than Pilocarpine - Methacholine can be used but it is rarely used as a drug except in diagnosis of asthmatics |
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A 65-yrs old patient has severe closed-angle glaucoma and was treated by a physician. The patient was treated with a high-dose of anti-cholinergic medication and almost immediately go into convulsion with bradycardia. Which drug is mostly responsible for the symptoms?
a/ Physostigmine (Eserine) b/ Edrophonium (Tensilon) c/ Neostigmine (Prostigmin) d/ Pralidoxime (2-PAM) |
a/ Physostigmine (Eserine)
- Edrophonium, in high dose, would cause paralysis but not convulsion - Neostigmine does not enter the brain, thus can not induce convulsion - 2-PAM is used to treat carbamate or organophosphate poisoning, not causing convulsion |
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When treating patients, a physician must avoid doing which of the following?
a/ a prolong treatment a patient with cardiovascular disease with Atenolol ( a selective β1 receptor antagonist) may eventually lead to desensitization of beta 1 receptor. A physician must immediately take the patient of the drugs. b/ |
a/ a prolong treatment a cardiac patient with atenolol may eventually lead to desensitization of beta 2 receptor, a physician must immediately take the patient of the drug to return to homeostatis
A physician must 'wean' the patient fof of any medication that has been given for a long time but do not abruptly end treatment. Doing so may lead to upregulation of the receptors and may lead to worse symptoms. |
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Beta-hemolytic Group A streptococci cause 4 types of local invasion or symptoms, which ones are they?
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1.pharyngitis (Strep
2.skin infections (Strep) 3.Scarlet fever 4.Septic shock |
