Infectious Diseases

Question 1

CDA for Chlamydia cervicitis

Answer 1

Doxycycline 100 BID x 7 days

Azithromycin 1g single dose followed by 500mg x 2days

Question 2

NCC for Neisseria cervicitis

Answer 2

Ciprofloxacin 500mg IM SD or

Ceftriaxone 1g IM SD

Question 3

Pseudomembranous colitis caused by Clostridium difficile

Answer 3

Metronidazole - first line

Vancomycin if severe

Question 4

URTI

Answer 4

Phenoxymethyl PCN

Question 5

First line drug for cellulitis, mastitis or DM foot infection?
If PCN allergic?
If MRSA?

Answer 5

Flucloxacillin

Clarithromycin or Erythromycin (if pregnant) or Clindamycin

Vancomycin

Question 6

Important drug for osteomyelitis or septic arthritis

Answer 6

Flucloxacillin + Na fusidate

Question 7

Important drug for toxoplasmosis

Answer 7

Pyrimethamine + Sulfadiazine

Question 8

In diagnosing Brucellosis, what is an important part of the history that should never be neglected?

Answer 8

Travel history

Occupation

Question 9

Most common mode of transmission for brucellosis?

Answer 9

Inhalation

Question 10

You are presented a male who recently came from South America where he worked as a farmer. His complaint is 8-week history of fever with weight loss, arthralgia and splenomegaly. He is febrile. Diagnosis?

Answer 10

Brucellosis

Question 11

Initial diagnostic test of choice for brucellosis

Answer 11

Rose Bengal test

Question 12

Gold standard in diagnosing brucellosis

Answer 12

Rose bengal test or serum agglutination test

Question 13

This Gram positive diplococci is associated with this kind of herpes

Answer 13

Streptococcus pneumonia - herpes labialis

Question 14

Pneumonia common in IV drug users and elderly

Answer 14

Staphylococcus aureus

Question 15

Pneumonia with a history of contaminated water

Answer 15

Legionella

Question 16

Cavitating pneumonia, particularly of upper lobes

Answer 16

Klebsiella

Question 17

Typical chest X-ray finding seen in Legionella pneumonia

Answer 17

bibasal consolidation

Question 18

Typical chest X-ray finding seen in strep pneumonia

Answer 18

Lobar consolidation

Question 19

Typical CXR finding seen in PCP

Answer 19

Bilateral consolidation

Question 20

Skin condition associated with mycoplasma pneumonia

Answer 20

Erythema multiforme

Question 21

Typical CXR finding seen in mycoplasma pneumonia

Answer 21

Patchy consolidation

Question 22

Vaccines that should not be given for adults with CD4 < 200 (for children: <750)

Answer 22

Yellow Fever
MMR
Varicella

Question 23

Penile ulcer is present and you are suspicious for syphilis. Diagnostic test of choice?

Answer 23

GUM clinic - dark field microscopy

GP surgery - PCR

Question 24

Penile ulcer has healed. Mouth ulcer is present.

Syphilis suspected. Diagnostic?

Answer 24

Regardless of clinic, do PCR.

***Dark field microscopy is not suitable for oral ulcers.

Question 25

Penile ulcer and mouth ulcer have healed

You are suspecting syphilis. Diagnostic?

Answer 25

Serology

Question 26

Describe Streptococcus pneumonia in terms of
Catalase
Coagulase
Hemolysis
Optochin
Gram staining

Answer 26

Catalase negative
Coagulase negative
Alpha hemolysis
Optochin sensitive
Gram positive