Which of the following statements matches correctly the term with the correct description.

A. Traveling abroad recently: While international travel can expose individuals to infectious diseases, it is not the most concerning factor in this case compared to his communal living situation.

B. Living in a large, crowded communal setting: Crowded living conditions significantly increase the risk of meningitis transmission, especially for bacterial types like Neisseria meningitidis which spread via respiratory droplets.

C. An infection of the brain tissue, typically due to a virus or bacteria: This describes encephalitis, not meningitis. Meningitis affects the protective membranes, not the brain tissue itself.

D. An inflammation of the protective membranes around the brain and spinal cord (meninges): This is the correct definition of meningitis and is the pathological hallmark of the disease.

E. Having an allergy to medications: Having an allergy to medications is important for safe patient care and medication administration, but it is not a risk factor for acquiring meningitis.

F. An inflammation of the lungs caused by a viral or bacterial infection: This describes pneumonia, not meningitis. It is unrelated to the direct cause of meningitis.

A. 60–89 mL/min/1.73m²: This range indicates mildly decreased GFR, often classified as Stage 2 chronic kidney disease. Renal function is still relatively preserved and not considered renal failure at this stage.

B. 30–59 mL/min/1.73m²: This reflects a moderate decrease in GFR, typically Stage 3 CKD. Although kidney function is significantly impaired, it is not yet categorized as renal failure.

C. 15–29 mL/min/1.73m²: This GFR indicates severe kidney impairment and is classified as Stage 4 CKD. While this stage shows significant dysfunction, renal failure is generally diagnosed at lower values.

D. <15 mL/min/1.73m²: A GFR below 15 signals end-stage renal disease (ESRD), also referred to as renal failure. At this stage, dialysis or kidney transplantation is usually necessary to sustain life.