You have been asked to consult on a patient in the hospital for a colleague who

Question

You have been asked to consult on a patient in the hospital for a colleague who is on vacation. A 32 year old woman suffering from systemic lupus erythematosus, and auto-immune disease which attacks the body's DNA and immune system. The patient has severe joint pain for which she has been taking hot whirlpool bath treatments for a couple of weeks. She complains of a slightly raised pruritic (itchy) rash on her thighs.
A. The likely organism that causes this dermatitis is
1. Staphylococcus aureus
2. echovirus
3. Candida albicans
4. pseudomonas aeruginosa
5. tinea versicolor (a fungus that causes ringworm)
B. This hearty organism, which effects those who are immunocompromised, reveals of gram negative bacillus on gram stain, and grows in soil and water. In some cases, it has been known to grow on soap dishes.
1. True or 2. False
C. One of the hallmarks of this organism which occurs quite often in burn patients is "blue-green" pus. This is caused by a pigment called
1. cycocobalmin
2. cyanide
3. cyanosis
4. pyocyanin
5. pyocobalmin

THIS IS MICROBIOLOGY

Explanation / Answer

A. Pseudomonas aeruginosa

Staphylococcus generally spreads by person to person contact.

Echo virus spreads commonly by faeco-oral route.

Candida generally affects buccal or vaginal mucosa with white discharge.

Tinea infection presents with depigmentated macules(flat patches) as apposed to papule( raised lesion).

Pseudomonas typically infects immunocompromised persons such as the patient, who is suffering from SLE.

B. True.

Pseudomonas is highly resistant to most of the disinfectants and can even grow on cetrimide agar, where other bacteria fail to grow.

C. Pyocyanin

The blue-green pus contains pyocyanin which is characteristic of Pseudomonas aeruginosa.

Related Questions

Navigate

• Browse (All)
• Browse Y
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.