A 36-year-old avid cyclist presents to the clinic with a chief complaint of experiencing numbness in his penis and scrotum for several minutes or even hours following a lengthy race.
Which nerve is the most probable culprit for this injury?
Which nerve roots and nerve are responsible for the knee reflex during a neurological examination of the lower limb when the quadriceps muscle is observed while striking the knee just below the patella with a hand placed under it?
A 16-year-old girl is playing volleyball and suffers an anterior dislocation of her right shoulder. She is taken to the Emergency department where her humerus is reduced under sedation. Which area should be tested for sensation to determine the nerve that is most likely to have been affected during the dislocation?
A trial is to be set up to examine a new drug for the maintenance of remission in all people over the age of 50 with ulcerative colitis.
A randomised double blinded placebo controlled trial recruits patients in hospital with an exacerbation of their ulcerative colitis. A standard questionnaire is used to record the frequency of exacerbations of disease over a two year period.
Results show that there is no difference between the drug and placebo and the results are published in a medical journal.
To which form of bias is this study most susceptible?
A glazier in his 40s slipped and cut his wrist on a piece of glass a few months ago. He did not seek medical advice at the time.
What signs of ulnar nerve damage would you expect to find on examination?
A study has shown that the chance of a heart attack in people over 50 is 3% and that the chance of a heart attack in people under 50 is 1%. The study states that the percentage change in the probability of a heart attack occurring due to age is 200%. Which of the following best describes the name of the calculation that the study has performed?
During puberty growth spurt, in which area does the majority of growth occur?
What is the underlying theory behind administering betamethasone during antenatal care before premature labor?
In a study of 26,000 females, 1,300 subjects were found to have either overt or subclinical hypothyroidism. The prevalence of hypothyroidism in this population was 5%. What is the most appropriate term to describe the 1,300 cases of hypothyroidism?
A 60-year-old patient presents with abnormal liver function tests, including elevated bilirubin, alanine transaminase, aspartate transaminase, alkaline phosphatase, and gamma glutamyl transferase, as well as decreased albumin and an elevated INR. What is the probable underlying cause of these findings?