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In a solution of pH7 what percentage of the drug is ionised?","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":7,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":72954,"quiz_id":"5548","answer_id":null,"answerType_id":"0","created_at":"2016-05-26 16:54:29","updated_at":"2016-05-27 19:10:24","questionName":"When the pH of a solution = the pKa of a drug what percentage of the drug is un-ionised?","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":6,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":73806,"quiz_id":"5548","answer_id":null,"answerType_id":"0","created_at":"2016-05-27 19:05:26","updated_at":"2016-05-27 19:10:24","questionName":"What type of drug is isoproterenol (isoprendaline)?","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":0,"explanation":"B1\/B2 agonist - have a postive chronotropic effect, specially on the SAN. A short half life of minutes so requires IV infusion and has 1st pass metabolism.","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":72962,"quiz_id":"5548","answer_id":null,"answerType_id":"0","created_at":"2016-05-26 17:07:31","updated_at":"2016-05-27 19:10:24","questionName":"When is a drug pharmacologically active?","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":10,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":72951,"quiz_id":"5548","answer_id":null,"answerType_id":"0","created_at":"2016-05-26 16:47:17","updated_at":"2016-05-27 19:10:24","questionName":"What character will increase the ability of a drugs rate of absorption?","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":4,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":73808,"quiz_id":"5548","answer_id":null,"answerType_id":"0","created_at":"2016-05-27 19:08:15","updated_at":"2016-05-27 19:10:24","questionName":"Which one of the following drugs does not lengthen action potential duraction and refractory period?","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":1,"explanation":"Lidocaine\/lignocaine is a class Ib antiarrhythmic drug and shortens action potential duration and refractory period.","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":72958,"quiz_id":"5548","answer_id":null,"answerType_id":"0","created_at":"2016-05-26 16:58:10","updated_at":"2016-05-27 19:10:24","questionName":"The acidic drug Warfarin has a pKa of 5. In a solution of pH3 what percentage of the drug is ionised?","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":8,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":73179,"quiz_id":"5548","answer_id":null,"answerType_id":"0","created_at":"2016-05-27 08:50:58","updated_at":"2016-05-27 19:10:24","questionName":"Which drugs have a bioavailability of 100%?","questionTimeSeconds":"0","questionTimeMinutes":"2","questionImagePath":null,"position":14,"explanation":"","question_score_id":null,"lang":null,"questionAudioPath":null},{"id":72966,"quiz_id":"5548","answer_id":null,"answerType_id":"0","created_at":"2016-05-26 17:12:25","updated_at":"2016-05-27 19:10:24","questionName":"Vd is the volume of distribution of a drug. 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