1st April 2022

You are reviewing blood results for your patients

You are reviewing blood results for your patients. One presented with a cough productive of sputum and shortness of breath. A diagnosis of community acquired pneumonia was suspected. A sputum culture was sent off and bloods were taken in order to aid treatment decision making. Her blood results were as follows: 

• Haemoglobin 102g/L (115-165g/L for men; 95-150g/L for women)
• White cell count 13×10^9/L (4.0-11.0×10^9/L)
• Neutrophils 79% (40-70%)
• Lymphocytes 45% (20-50%)
• Sodium 135mmol/L (133-146mmol/L)
• Potassium 4.2mmol/L (3.5-5.3mmol/L)
• Creatinine 141mmol/L (64-104mmol/L for men; 49-90mmol/L for women)
• Urea 6.1mmol/L (2.5-7.8mmol/L)
• eGFR 93 (90-120 mL/min/1.73 m^2; though it can vary depending on age and other factors)
• TSH 0.3mu/L (0.4-4.0mu/L)
• Free T4 15 pmol/L (9-25 pmol/L)
• Free T3 3.0 pmol/L (3.5-6.5 pmol/L).

Which of the following is the most likely cause of the deranged TFTs?

Select the SINGLE most appropriate option from the list below. Select ONE option only.