Paper II
2023 January (Supplementary) (2019 Scheme) · 100 marks · 180 min

Question

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  • (a) Discuss in detail the Pharmacotherapy of Urinary tract infection. ( 4 mark(s)
  • (b) Briefly describe the adverse effects of Oral Contraceptive Pills. 4 mark(s)
Q48 marksShort Essays

Answer

a) Pharmacotherapy of urinary tract infection

  • Uncomplicated lower UTI: Nitrofurantoin or Fosfomycin (favorable resistance profile, short courses), or Cotrimoxazole/Fluoroquinolones where local resistance permits.
  • Complicated/upper UTI (pyelonephritis): Fluoroquinolones (Ciprofloxacin) or third-generation cephalosporins, given orally or IV depending on severity, for a longer course.
  • Pregnancy: Beta-lactams (Cephalexin, Amoxicillin) — avoiding fluoroquinolones (cartilage toxicity) and cotrimoxazole (folate antagonism/kernicterus risk near term).
  • Recurrent UTI prophylaxis: low-dose Nitrofurantoin or Cotrimoxazole given continuously or post-coitally. Therapy is ideally guided by urine culture and sensitivity, started empirically based on local resistance patterns while awaiting results.

b) Adverse effects of oral contraceptive pills Thromboembolism (estrogen-driven, increased risk in smokers over 35 years), breakthrough bleeding, headache, weight gain, nausea, mood changes, and — rarely — hepatic adenoma with long-term use. Estrogen-related cardiovascular risk (venous thromboembolism, and in susceptible individuals, hypertension) is the most clinically significant concern, weighed against contraceptive benefit when prescribing.

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