I think that was right of the Nurse to do so because the person in the accident was exposed to someone whose blood was HIV positive, and so now they might have it too.
I would have consulted with the patient about if it was okay to let the other person know that they could now be infected with HIV and if the HIV positive patient said it was fine I would go back and tell the other patient. 
hope that helps :)
 
        
             
        
        
        
Answer:
Retropharyngeal abscess.
Explanation:
Retropharyngeal abscess is a bump located at the edge of the front part of the neck known as the throat, behind the retropharyngeal space. It is known as a bacterial disease that is spread from the body organs such as nose, throat, etc. Symptoms of this abscess include sore throat along with dysphagia, fever, and voice changes.
The treatment of Retropharyngeal abscess depends on the sign of disease, X-rays tomography is taken of the neck. It is also reduced by the help of surgery or antibiotics are taken by patients to remove the disorder.
 
        
             
        
        
        
It’s considered a Gene hope this helps you