Free Questions and Answers for All Medical Students all over the World
A 32-year-old man with a history of HIV infection presents to the clinic complaining of fecal urgency and bloody diarrhea. The patient was diagnosed with pneumocystis jiroveci pneumonia 6 months ago. Which of these organisms is the most likely involved in this condition? A-Clostridium difficile B-cytomegalovirus C-Entamoeba histolytica D-Giardia lamblia Answer Fecal urgency and bloody … Read more
A 1-year-old girl is brought to the pediatrician by her parents due to poor growth and skeletal abnormalities. Laboratory investigations show microcytic anemia and higher concentration of hemoglobin A2. Which is the most likely diagnosis? A- Sickle cell anemia B- β-thalassemia C- Lead poisoning D- Iron deficiency Answer β-thalassemia is an inherited blood disorder that … Read more
A 60-year-old man visits the clinic due to profuse watery diarrhea and left lower abdominal colicky pain for the last 6 hours. Upon taking history, the patient claims that he is taking broad spectrum antibiotics for acute bronchitis. Which is the most likely causative organism for the patient’s new symptoms? A- Clostridium botulinum B- Clostridium … Read more
A 52-year-old man who is recently diagnosed with gout is presented to his physician to discuss his treatment plan. One of the treatments that will be taken is allopurinol. Which of these enzymes is targeted by this medication? A-Hypoxanthine guanine phosphoribosyltransferase B-Phosphoribosylpyrophosphate synthase C-Guanase D-Xanthine oxidase Answer Allopurinol is used to treat chronic gout due … Read more
A 45-year-old woman working as a secretary visits her physician complaining of tingling and numbness in her hands. Upon conducting a physical examination, the doctor finds that the patient also has decreased sensation in all her fingers, except for the fifth digit. Keeping these in mind, which of the following muscles is usually weakened in … Read more
A 3-month-old baby is recognized to have a horseshoe kidney. In this case, which of the following structure is known to prevent this abnormally shaped kidney from occupying the correct position? A- Abdominal aorta B- Celiac trunk C- Inferior mesenteric artery D-Superior mesenteric artery Answer A horseshoe kidney is a resultant of a condition where … Read more