Home › DHA Speciality › Specialist Public Health Medicine (COM5551)

Master Specialist Public Health Medicine (COM5551)
for DHA Speciality

Access 226+ high-yield questions tailored for the 2026 syllabus. Includes AI-powered explanations and performance tracking.

Start Free Practice View Full Syllabus

Sample Practice Questions

Question 1 FULLY WORKED EXAMPLE

A 34-year-old woman at 28 weeks' gestation attends the antenatal clinic with a 3-day history of dysuria, urinary frequency, and suprapubic discomfort. She is afebrile, blood pressure 108/68 mmHg, pulse 84/min, and urine dipstick shows nitrites and leucocytes. She has no allergies and a normal renal function (eGFR >90 mL/min/1.73 m?). She is otherwise well and has no history of recurrent urinary tract infection. What is the most appropriate first-line antibiotic?

A) Trimethoprim
B) Nitrofurantoin ✓ Correct
C) Ciprofloxacin
D) Amoxicillin
Explanation:
The deciding finding is that the patient is at 28 weeks' gestation, which is beyond the first trimester but still within the window where nitrofurantoin is safe and effective for lower urinary tract infection; trimethoprim is a folate antagonist and is avoided in the first trimester and near term due to teratogenic and haemolytic risks. Nitrofurantoin is the recommended first-line agent for uncomplicated lower UTI in pregnancy in UK and WHO guidance, achieving high urinary concentrations with low resistance. Trimethoprim is wrong because of its antifolate activity and potential teratogenicity, particularly in the first trimester, and is not first-line at 28 weeks. Ciprofloxacin is wrong because fluoroquinolones are reserved and avoided in pregnancy due to cartilage and tendon concerns. Amoxicillin is wrong because E. coli resistance rates are high and it is not recommended empirically for UTI.
References: NICE guideline NG109, Urinary tract infection (lower): antimicrobial prescribing, 2018.
Question 2 TRY IT — TAP AN ANSWER

A 62-year-old man with type 2 diabetes and a 10-year history of hypertension presents to his GP with a 2-week history of productive cough, fever, and pleuritic chest pain. He is a non-smoker. Vital signs: temperature 38.4?C, respiratory rate 24/min, blood pressure 118/74 mmHg, oxygen saturation 93% on room air. Chest X-ray shows right lower lobe consolidation. His CURB-65 score is 1. He has no allergies and his renal function is normal. What is the most appropriate management?

A) Admit to hospital for intravenous antibiotics
B) Amoxicillin 500 mg orally three times daily and safety-net advice
C) Levofloxacin 500 mg orally once daily and safety-net advice
D) Doxycycline 200 mg orally once daily and safety-net advice
💡 Pick an answer above to see if you're right — the full explanation unlocks instantly.
Question 3 TRY IT — TAP AN ANSWER

A 45-year-old woman presents to a sexual health clinic with a 5-day history of vaginal discharge and vulval itching. She is not pregnant, has no allergies, and her last menstrual period was 2 weeks ago. Speculum examination shows a thick white discharge and vulval erythema. Vaginal pH is 4.0, and microscopy shows budding yeast cells and pseudohyphae. She has no history of recurrent candidiasis and no immunosuppression. What is the most appropriate first-line treatment?

A) Fluconazole 150 mg orally as a single dose
B) Metronidazole 400 mg orally twice daily for 7 days
C) Clotrimazole 500 mg vaginal pessary as a single dose
D) Doxycycline 100 mg orally twice daily for 7 days
💡 Pick an answer above to see if you're right — the full explanation unlocks instantly.
Question 4 TRY IT — TAP AN ANSWER

A 70-year-old man with chronic kidney disease stage 4 (eGFR 22 mL/min/1.73 m?) presents with a 3-day history of painful, red, swollen left leg. He is afebrile, blood pressure 138/82 mmHg, pulse 88/min. Doppler ultrasound confirms a proximal deep vein thrombosis. He has no active bleeding and no history of heparin-induced thrombocytopenia. What is the most appropriate initial anticoagulant?

A) Apixaban 10 mg orally twice daily for 7 days
B) Enoxaparin 1.5 mg/kg subcutaneously once daily
C) Warfarin 5 mg orally once daily with enoxaparin bridging
D) Unfractionated heparin intravenous infusion
💡 Pick an answer above to see if you're right — the full explanation unlocks instantly.
Question 5 TRY IT — TAP AN ANSWER

A 28-year-old woman presents to her GP with a 2-week history of low mood, anhedonia, and poor sleep. She has no suicidal ideation and no past psychiatric history. She is 10 weeks pregnant. She has no allergies and takes no regular medication. What is the most appropriate first-line management?

A) Sertraline 50 mg orally once daily
B) Cognitive behavioural therapy
C) Fluoxetine 20 mg orally once daily
D) Amitriptyline 25 mg orally at night
💡 Pick an answer above to see if you're right — the full explanation unlocks instantly.

Want 226+ more Specialist Public Health Medicine (COM5551) questions?

Start Free — No Card Needed

DHA Speciality

  • ✓ 226+ Specialist Public Health Medicine (COM5551) Questions
  • ✓ AI Tutor Assistance
  • ✓ Detailed Explanations
  • ✓ Performance Analytics
Get Full Access

Specialist Public Health Medicine (COM5551) Questions for DHA Speciality — FAQ

How many Specialist Public Health Medicine (COM5551) questions does MedLumen have for DHA Speciality?

MedLumen currently has 226+ Specialist Public Health Medicine (COM5551) practice questions for DHA Speciality, each with a detailed explanation so you understand the reasoning behind every answer.

Are the Specialist Public Health Medicine (COM5551) questions updated for the 2026 DHA Speciality syllabus?

Yes. Our Specialist Public Health Medicine (COM5551) questions are mapped to the latest DHA Speciality blueprint and reviewed regularly so they stay aligned with the current 2026 syllabus.

Can I practise Specialist Public Health Medicine (COM5551) questions for free?

You can preview sample Specialist Public Health Medicine (COM5551) questions for free. A MedLumen subscription unlocks all 226+ Specialist Public Health Medicine (COM5551) questions, full answer explanations, and performance analytics for DHA Speciality.

How should I revise Specialist Public Health Medicine (COM5551) for DHA Speciality?

Practise Specialist Public Health Medicine (COM5551) questions in timed blocks, read the explanation for every answer (right or wrong), and use MedLumen's analytics to revisit your weak areas until your accuracy is consistently high.

Prepare for DHA Speciality with MedLumen →