MRCP2-4416
A 70-year-old man is referred to the hospital by his GP with a suspected case of pneumonia. He is able to converse appropriately in complete sentences.
His vital signs are as follows: heart rate of 98, blood pressure of 110/79 mmHg, respiratory rate of 27, and a temperature of 38.2°C.
The results of his laboratory tests are as follows: hemoglobin level of 125 g/L (normal range: 130-180), white blood cell count of 18.7 ×109/L (normal range: 4-11), neutrophil count of 16.1 ×109/L (normal range: 1.5-7.0), platelet count of 479 ×109/L (normal range: 150-400), sodium level of 123 mmol/L (normal range: 137-144), potassium level of 3.8 mmol/L (normal range: 3.5-4.9), urea level of 8.1 mmol/L (normal range: 2.5-7.5), creatinine level of 115 μmol/L (normal range: 60-110), and CRP level of 210 mg/L (normal range: <10). Based on the above information, what is his predicted mortality rate according to the current BTS guidelines?