A 50 year old man is undergoing a neurophysiological study of the reflex arc timing for different reflexes in his right leg, as a part of follow up after a nerve injury. His knee jerk recorded an arc time that was short compared to flexor withdrawal reflex.

A 50-year-old woman develops a headache, confusion, and seizures. Imaging reveals thrombosis of the sinus at the junction of the falx cerebri and tentorium cerebelli.

A 29-year-old nurse working in the radiology department attends an occupational health review. She frequently assists with interventional radiology procedures and is often in close proximity to imaging equipment, such as fluoroscopy machines. Despite adhering to safety protocols, including the use of lead aprons and dosimeters, she is concerned about the immediate health effects associated with her occupational exposure to ionizing radiation.

A 25 year old university student presents to the emergency department with a fever, headache, neck stiffness, and a purpuric rash. Lumbar puncture shows cloudy cerebrospinal fluid with elevated protein, decreased glucose, and a high neutrophil count. Gram stain reveals Gram-negative diplococci.

A 27 year old medical intern is subject to severe pain from a wide bore needle injury to his little finger while performing a lumbar puncture on a patient.

A 50-year-old woman presents with hemiplegia on the right side and paralysis of eye muscles on the left side. By examination, the lateral rectus and superior oblique muscles of the left eye were not affected. The case was diagnosed as Weber’s syndrome with oculomotor nerve paralysis.

A company has developed and tested the safety of a new antidiabetic drug. Now they want to compare the efficacy and safety of the drug to the currently used gold standard therapy.

A 17-year-old woman is admitted to the hospital with tonsillitis. A tonsillectomy is performed and the patient complains postoperatively of ear pain.

A pharmaceutical company has developed 200 compounds as potential therapies for Covid-19 targeting the viral RNA polymerase. What is the company supposed to do to assess which of the drugs most efficiently inhibits the SARS-CoV-2 virus?

Occupational disease is defined as any disease contracted as a result of an exposure to risk factors arising from work activity.