Differential Diagnosis for a 19-year-old female with sore throat, cough, and fever of 104
- Single most likely diagnosis
- Viral pharyngitis: This is the most common cause of sore throat and fever in young adults, and the presence of a cough suggests a viral upper respiratory infection.
- Other Likely diagnoses
- Influenza: The high fever and cough are consistent with influenza, especially during flu season.
- Streptococcal pharyngitis: Although less common than viral pharyngitis, strep throat is a significant consideration in young adults with sore throat and fever.
- Acute bronchitis: The cough and fever could be indicative of an acute bronchitis, which is often caused by a viral infection.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Epiglottitis: Although rare, epiglottitis is a life-threatening condition that requires prompt recognition and treatment.
- Pneumonia: Bacterial pneumonia can present with high fever, cough, and sore throat, and is a potentially life-threatening condition if not treated promptly.
- Lemierre's syndrome: This rare condition is characterized by a bacterial infection of the throat, followed by sepsis and thrombophlebitis, and can be fatal if not recognized and treated.
- Rare diagnoses
- Mononucleosis: Although more common in young adults, mononucleosis (caused by Epstein-Barr virus) can present with sore throat, fever, and cough, but is less likely than other viral infections.
- Tuberculosis: Although rare in young adults, TB can present with chronic cough, fever, and sore throat, and should be considered in patients with risk factors or exposure history.
- Kawasaki disease: This rare condition can present with fever, sore throat, and cough, but is more commonly seen in children under the age of 5.