MCQ Flashcards
(39 cards)
2- What is the mechanism of action of lactulose as a purgative?
d. It increases bulk of intestinal contents by osmosis
3- Which of the following is an opiate anti-motility agent with minimal crossing
of the blood-brain barrier and used in treatment of diarrhea ?
a. Kaolin
b. Loperamide
c. Mebeverine
d. Propantheline
b. Loperamide
6- Which of the following is an antacid that can cause constipation and
hypophosphatemia?
a. Aluminum hydroxide gel
b. Magnesium trisilicate
c. Sodium bicarbonate
d. Calcium carbonate
a. Aluminum hydroxide gel
15- Regarding the eradication of helicobacter bacteria, all of the following antimicrobials can be used EXCEPT:
a- Clarithromycin
b- Metronidazole
c- Amoxicillin
d- Gentamycin
d- Gentamycin
17- As regard prokinetic agents, which of the following is FALSE:
a- Domperidone has dual anti-emetic & prokinetic effects
b- Metoclopramide is effective in motion sickness
c- Erythromycin stimulates motilin receptors on GIT
d- Itopride & Mosapride stimulate 5-HT4 receptors in enteric ganglia
b- Metoclopramide is effective in motion sickness
19- Regarding the role of drugs acting on neurokinin receptors in the control of vomiting, which of the following statements is true?
a- Neurokinin receptor blockers are particularly useful in vomiting of pregnancy.
b- Aprepitant is one of the commonly used blockers of these receptors.
c- Tumor Necrosis Factor (TNF) can stimulate these receptors.
d- These receptors are effectively blocked by palonosetron.
b- Aprepitant is one of the commonly used blockers of these receptors.
20- Which of the following is an opiate anti-motility agent with minimal crossing of the blood-brain barrier and used in treatment of diarrhea ?
a- Loperamide
b- Mebeverine
c- Propantheline
d- Kaolin
a- Loperamide
22- Regarding the mucosal protective Misoprostol, which of the following statements is true?
a- It is an anti-prostaglandin for the treatment of fever
b- It can produce abortion in pregnant woman
c- It is a spasmolytic used for the treatment of colic
d- It is an antiplatelet agent
b- It can produce abortion in pregnant woman
23- Which of the following is a new intravenous antiemetic that has great affinity for 5-HT3 receptors and a long serum half-life of 40 hours?
a- Metoclopramide
b- Ondansetron
c- Dronabinol
d- Palonosetron
d- Palonosetron
27- Which of the following explains the beneficial effect of kaolin in the
treatment of diarrhea?
a- It stimulates opiate receptors in GIT
b- It blocks muscarinic receptors in GIT
c- It adsorbs toxic substances and provides a coating for the intestine
d- It releases tannic acid in intestine and precipitates surfaces proteins
c- It adsorbs toxic substances and provides a coating for the intestine
28- If the investigations for a case of peptic ulcer showed H. pylori infection, the proper triple therapy regimen for the eradication is:
a- Omeprazole+ Amoxicillin + Cefoperazone
b- Omeprazole + Amoxicillin + Tetracycline
c- Omeprazole + Amoxicillin + Clarithromycin
d- Omeprazole+ Amoxicillin + Metronidazole
c- Omeprazole + Amoxicillin + Clarithromycin
29- Which of the following mucosal protective drugs has an additional
bactericidal effect against H. pylori?
a- Sucralfate
b- Misoprostol
c- Colloidal bismuth
d- Carbenoxolone
c- Colloidal bismuth
31- Which of the following antidiarrheal drugs exerts its action by adsorbing toxic substances?
a. Diphenoxylate
b. Propantheline
c. Charcoal
d. Mebeverine
c. Charcoal
38- Which of the following is an important difference between cimetidine and ranitidine?
a. Cimetidine has a longer half-life.
b. Ranitidine has fewer drug interactions.
c. Only ranitidine blocks H2 receptors.
d. Only ranitidine crosses the blood brain barrier
b. Ranitidine has fewer drug interactions.
42- Which of the following is a prokinetic agent?
a. Itopride
b. Mebeverine
c. Alosetron.
d. Diphenoxylate
b. Mebeverine
43- One of the following drugs is paired with a relevant action:
a- Magnesium trisilicate - Irreversible inhibition of parietal H+/K+ ATPase
b- Ranitidine - Histamine H₂ receptor blocker
c- Pantoprazole - Chemical and physical antacid
d- Dimenhydrinate - Blocks D₂ receptors in CTZ
b- Ranitidine - Histamine H₂ receptor blocker
45- Indicate which drug might interact with antiplatelet effect of clopidogrel:
a- Omeprazole
b- Famotidine
c- Rabeprazole
d- Pirenzepine
a- Omeprazole
47- The following purgative is used with neomycin in treatment of hepatic encephalopathy:
a- Methyl-cellulose
b- Lactulose
c- Bisacodyl
d- Croton oil
b- Lactulose
48- The following purgative causes lipid pneumonia if it reaches the lung:
a- Liquid paraffin
b- Mediyi cellulose
c- Lactulose
d- Magnesium sulphate
a- Liquid paraffin
50- Drug that activates mu opioid receptors in enteric nervous system and used in treatment of diarrhea is:
a- Propantheline
b- Atropine
c- Loperamide
d- Dicyclomine
c- Loperamide
54- Anorexigenic drug that decrease the uptake of noradrenaline (NA) and serotonin (5-HT) in hypothalamus is:
a- Sibutramine
b- Lorcaserin
c- Metformin
d- Liraglutide
a- Sibutramine
56- Which of the following is a long-acting selective beta 2 agonist given by inhalation?
a. Salmetrol
b. Terbutaline
c. Salbutamol
d. Bambuterol
a. Salmetrol
58- Which of the following is a central antitussive used in the treatment of chronic non-productive cough?
a. Loratadine
b. Bromhexine
c. Acetylcysteine
d. Dextromethorphan
d. Dextromethorphan
59- Which of the following is a leukotriene receptor antagonist?
a. Zileuton
b. Omalizumab
c. Zafirlukast
d. Ciclesonide
c. Zafirlukast
