List of practice Questions

Which of the following is a respiratory effect of progesterone during pregnancy?
In a woman at high risk because of a past history of pre-eclampsia, which is the best method to prevent pre-eclampsia in the current pregnancy?
A propagated (progressive) epidemic showing multiple peaks separated by the incubation period is characteristically seen in which of the following diseases?
Which of the following is a probable sign of pregnancy?
In laparoscopic (TAPP/TEP) inguinal hernia repair, what is the minimum distance of dissection below the inguinal ligament required to adequately expose the entire myopectineal orifice of Fruchaud?
The accompanying histology slide of esophageal mucosa shows the lower esophageal lining replaced by columnar (intestinal-type) epithelium with goblet cells in place of the normal stratified squamous epithelium. Which condition does this represent?
Which clinical feature best differentiates mechanical small intestinal obstruction from paralytic ileus?
Which cardiac abnormality is most characteristically associated with systemic sclerosis (scleroderma)?
Which of the following intercellular junctions seals the paracellular space and is classified as a tight (occluding) junction?
A 2-day-old neonate presents with blistering/erosive skin lesions over the face and abdomen. There is no fever and no mucosal involvement. The mother has a history of an autoimmune blistering disorder. What is the most likely diagnosis?
In poisoning with which of the following is central respiratory depression not a feature?
On defecography, a rectocele is considered significant when the anterior bulging of the rectal wall into the posterior vaginal wall exceeds:
Among the following neurodegenerative disorders, which one has a distinct (potentially curable) treatment?
An entry firearm wound demonstrates an abrasion collar and a grease collar but completely lacks gunpowder tattooing (stippling), soot, and singeing of hair. The most appropriate interpretation of the firing distance is:
A characteristic pattern of multiple radiating, brush-like abrasions resembling a bird’s foot (“sparrow-foot” or crow-foot marks) is found on the skin of a deceased. This injury pattern is most characteristic of:
A patient is brought to the emergency department with pin-point pupils, depressed respiration, and a reduced level of consciousness following suspected opioid (e.g., morphine/heroin) overdose. Which drug is the specific antidote?
A victim of a bomb blast sustains burns to the chest and face caused by the fireball and the heat of the explosion (not by the blast wave, flying fragments, or being thrown against a structure). This burn injury is best classified as which category of blast injury?
A researcher plots the average per-capita alcohol intake of 10 different countries against the cirrhosis mortality rate of each of those countries, using one data point per country, to look for an association. Which type of epidemiological study design does this represent?
In a case-control study, among the cases there are 60 exposed and 20 unexposed individuals, while among the controls there are 40 exposed and 80 unexposed individuals. What is the odds ratio of exposure?
A new screening test is applied. It yields 90 true positives and 50 false positives. What is the positive predictive value (PPV) of the test?
An influenza vaccine shows 90% efficacy in a randomized controlled trial but only 85% performance when used in the routine community programme. Which value represents the effectiveness of the vaccine?
An influenza vaccine is evaluated in a well-conducted randomized controlled trial and again during routine community use. The trial value is 90% and the field value is 85%. Which value represents the efficacy of the vaccine?
Regarding the pattern of coronary blood flow, how does flow in the right coronary artery (RCA) differ from that in the left coronary artery (LCA) during the cardiac cycle?
An elderly man with a history of atrial fibrillation presents with sudden severe abdominal pain that is out of proportion to physical findings. Which laboratory finding most strongly supports the diagnosis of acute mesenteric ischemia?
Which of the following is NOT a feature of Kawasaki disease?