Differential Diagnosis
The patient presents with symptoms of an upper respiratory tract infection (URTI), including runny nose, teeth pain, headache, watery eyes, cough, epistaxis, sore throat, blocked nose with sinus pain, and fever. The following differential diagnoses are considered:
- Single Most Likely Diagnosis
- Viral Upper Respiratory Tract Infection (URTI): The patient's symptoms, such as runny nose, cough, sore throat, and fever, are consistent with a viral URTI. The absence of abnormal findings on chest examination and the presence of sinus pain also support this diagnosis.
- Other Likely Diagnoses
- Acute Sinusitis: The patient's symptoms of blocked nose, sinus pain, and epistaxis suggest acute sinusitis, which can be a complication of URTI.
- Allergic Rhinitis: Although the patient has no known allergies, the symptoms of runny nose, watery eyes, and cough could also be consistent with allergic rhinitis.
- Influenza: The patient's fever, cough, and sore throat could be indicative of influenza, especially during the flu season.
- Do Not Miss Diagnoses
- Bacterial Sinusitis: Although less likely, bacterial sinusitis can be a serious complication of URTI, especially if left untreated. The patient's symptoms of sinus pain and epistaxis warrant consideration of this diagnosis.
- Pneumonia: Although the chest examination is normal, pneumonia can present with minimal symptoms, especially in older adults. The patient's fever and cough warrant consideration of this diagnosis.
- Diabetic Ketoacidosis (DKA): The patient has a history of type 2 diabetes, and the symptoms of fever, headache, and sore throat could be indicative of an infection, which can precipitate DKA.
- Rare Diagnoses
- Wegener's Granulomatosis: This rare autoimmune disorder can present with symptoms of sinusitis, epistaxis, and cough, although it is much less likely.
- Tuberculosis: Although rare, tuberculosis can present with symptoms of cough, fever, and sore throat, especially in older adults or those with underlying medical conditions.