A 67-year-old man was brought by his wife to the ER for the abrupt onset of...
A 67-year-old man was brought by his wife to the ER for the abrupt onset of shaking chills, high fever, and pain on the right side of his chest. His wife reported that he had experienced shortness of breath and a cough that was productive and rust-colored. The patient was a diabetic and smoked two packs of cigarettes per day. He had been a chain smoker for the last 20 years. X-ray revealed consolidation of the right upper lobe consistent with pneumonia. Name three pathogens that can cause pneumonia.
Gram stain of the sputum revealed Gram positive diplococcic with unstained capsule. What is the likely bacterium? What other tests could you do to confirm? How would you treat?
Homework Answers
1- Streptococcus pneumoniae
2- Mycoplasma pneumoniae
3- Haemophilus influenzae
Gram-positive diplococci with the unstained capsule is Streptococcus pneumoniae
Other tests that can be used for Streptococcus pneumoniae are catalase test, alpha-hemolysin test, and oxidase test
Most commonly used treatment for Gram-positive bacteria are penicillin.
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Case Study
#1
CHIEF
COMPLAINT: Cough and fever for four days
HISTORY: Mr. Alcot is
a 68 year old man who developed a harsh, productive cough four days
prior to being seen by a physician. The sputum is thick and
yellow. He developed a fever, shaking, chills and
malaise along with the cough. One day ago he developed pain in his
right chest that intensifies with inspiration. He lost 15 lbs. over
the past few months but claims he did not...
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