DHA — Infectious Diseases MCQs
Practice 167 Infectious Diseases past-paper MCQs for DHA, each with a detailed explanation and reference. Try free samples below, then start a full quiz.
Part of the full DHA QBank — 2,034 questions across all subjects.
Infectious Diseases is a core part of the DHA syllabus. HighYield's Infectious Diseases question bank collects 167MCQs modelled on real past papers, so you practise the exact style and difficulty you'll face on exam day. Every question comes with a worked explanation and a subject reference, so you learn why an answer is right — not just which option to pick.
Work through Infectious Diseases in Tutor mode to learn as you go, or switch to Timed mode to simulate real exam pressure. Your accuracy is tracked per subject, so you always know whether Infectious Diseases is a strength to maintain or a weak area to drill.
Sample Infectious Diseases Questions
A 34-year-old abattoir worker presents to the Emergency Department following the development of black skin lesions. On examination a black eschar is noted with extensive surrounding oedema. A diagnosis of cutaneous anthrax is suspected. What is the most appropriate initial antibiotic therapy until sensitivities are known?
- A.Ciprofloxacin
- B.Metronidazole
- C.Erythromycin
- D.Benzylpenicillin
- E.Gentamicin
What is the mechanism of action of rifampicin?
- A.Inhibits DNA synthesis
- B.Interferes with cell wall formation
- C.Inhibits RNA synthesis
- D.Causes misreading of mRNA
- E.Inhibits protein synthesis
A 30-year-old man is diagnosed as having malaria following a recent trip to Zimbabwe. Which one of the following is most likely to indicate severe malaria?
- A.Parasitaemia 1%
- B.Heart rate 102 per minute
- C.White blood cells 18.2 * 10 9 /l
- D.Platelets 105 * 10 9 /l
- E.Respiratory rate 30 per minute
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