CLASSIFICATION OF DISEASES. 61 



As regards the progress, how are fevers divided? 



Into continued, periodical, and eruptive. 



Define a continued fever. 



A continued fever is one characterized by the temperature being 

 more or less elevated throughout the disease. 



What is understood by a periodical fever? 



This is a fever characterized by the distinct periodicity of the 

 symptoms, having intervals when the patient is wholly or com- 

 pletely free from fever. 



What is a remittent fever? 



This is a paroxysmal fever, characterized by exacerbations, 

 the patient having more or less fever throughout the disease. 



The febrile phenomena are truly continuous, but they increase 

 from time to time and diminish at others. 



Define an intermittent fever. 



In this form the fever totally disappears during a certain time, 

 to reappear again after a determined lapse of time. This is called 

 fever and ague, or chills and fever, in the human subject, and is 

 caused by the bacillus malaria. 



Intermittent fever may assume what types ? 



When the fever occurs daily and the apyrexia lasts twenty-four 

 hours, it is called quotidian. When the fever occurs every third 

 day, the apyrexia lasting forty-eight hours, it is called tertian. 

 When the apyrexia lasts seventy-two hours, the attacks taking place 

 every first and fourth day, it is called quartan. 



Enumerate some of the causes of fever. 



Excitement, sudden atmospheric changes, infection, conges- 

 tion of an organ, changes in the composition of the blood, hemor- 

 rhages, inflammation, gangrene, suppuration. 



Give the indications for treatment of fever. 



1st. Reduce the sijmptoms of fever, as excitement, respiratory 

 disturbance, and elevated temperature, especially if excessive. 

 2d. Assist the system to establish a reaction. 

 3d. Comlat unexpected symptoms. 

 The indications, then, for treatment are: Reduce the tempera- 



