A 28-year-old pregnant woman is seen by her GP with symptoms of a urinary tract infection. She is 11 weeks pregnant with her first child. Microbiology results are not yet available but an atypical pathogen is not suspected. What pathogen is the most likely cause of this woman’s urinary tract infection?

A 28-year-old pregnant woman is seen by her GP with symptoms of a urinary tract infection. She is 11 weeks pregnant with her first child. Microbiology results are not yet available but an atypical pathogen is not suspected. GP would like to prescribe antimicrobial treatment and would like your advice on which antibiotic would be most suitable.

A 28-year-old man is diagnosed with chlamydia and epididymitis; he is prescribed antibiotic treatment for 14 days. One month later during exercise he notices a sharp pain in the back of his leg. Cessation of activity and the use of NSAIDs did not relieve the symptoms. Upon examination, a diagnosis of partial tear of the Achilles tendon is made.

A 47-year-old man comes to your clinic with swelling and redness on his forearm. He works at an animal shelter and was bitten by a cat. Although he washed the area, he is worried it is infected. Which antibiotic do you prescribe? He has no allergies

For initial treatment of Helicobacter pylori infection in penicillin allergic patients, a one-week triple therapy regimen comprises a proton pump inhibitor, clarithromycin, and which other antibiotic?

A 68-year-old patient presents with an exacerbation of COPD. He is allergic to penicillin and is regularly prescribed: Aspirin 75mg, Bisoprolol 2.5mg, Lisinopril 5mg, Simvastatin 40mg. What is the most suitable antibiotic?

A 47-year-old woman presents with acute dysuria, frequency, urgency, and lower back pain. She takes prednisolone, carbocisteine, and salbutamol. Four days after starting antibiotics for a severe UTI, she develops abrupt severe ankle pain. Which antibiotic is likely associated with her new-onset symptoms?

A 72-year-old patient presents with dysuria, urinary frequency, and urgency. eGFR=42mL/min. What is the most appropriate antibiotic?

A 6-year-old patient has recently been diagnosed with scarlet fever. What is the most appropriate first-line treatment?

A 3-year-old boy has anal itching, especially at night, with white thread-like streaks in his stool. What is the most appropriate advice? His mum is currently 11 weeks pregnant. He is the only child

A patient is prescribed co-amoxiclav 625mg TDS for five days for low severity community-acquired pneumonia. You are concerned.

A 56-year-old man on antibiotics for severe community-acquired pneumonia develops jaundice. Which antibiotic is most likely responsible?

A 32-year-old man treated for TB develops tingling/numbness in his leg. Which antibiotic is most likely responsible?

A 44-year-old woman on an antibiotic for infective endocarditis finds her contact lenses stained red. Which antibiotic caused this?

A 10-year-old boy is prescribed an antibiotic for a chest infection. His mother is concerned about tooth discoloration. Which antibiotic?

A 63-year-old male with eGFR 39mL/min is prescribed trimethoprim 200mg BID for three days. Concern?

A junior doctor has asked for your advice on a patient currently being treated for Clostridioides difficile infection. The patient recently completed a course of antibiotics prescribed by their GP and was admitted to hospital this morning. Which of the following antibiotics is least likely to have contributed to the C. difficile infection?

An adult patient is diagnosed with uncomplicated cellulitis of the lower leg. The patient has no known drug allergies. What is the most appropriate first-line oral antibiotic therapy?

A 68-year-old patient is started on IV Vancomycin for a suspected MRSA infection. Which pair of parameters must be monitored to ensure the drug is both safe and effective?

A 28-year-old woman presents to the pharmacy with symptoms of an uncomplicated lower Urinary Tract Infection (UTI). She is not pregnant, has no known allergies, and has a normal renal function (eGFR>45mL/min). Which of the following is the most appropriate first-line oral antibiotic choice, based on UK guidelines for a 3-day course?

A 70-year-old man is admitted with severe Community-Acquired Pneumonia (CAP). He has a known life-threatening penicillin allergy (anaphylaxis). Which of the following is the most appropriate regimen for initial empirical intravenous treatment?

A 40-year-old patient is diagnosed with mild Clostridioides difficile infection (CDI) and has had no previous episodes. They have no known allergies or contraindications. Which of the following is the most appropriate first-line oral antibiotic for this initial episode?

Which topical antimicrobial agent is the first-line treatment for localised, non-bullous impetigo in a child, provided the infection is limited and non-systemic?

An 18-year-old student is diagnosed with non-gonococcal urethritis (NGU) likely caused by Chlamydia trachomatis. Which antibiotic is the preferred single-dose oral regimen for treatment?

A 27-year-old man has been admitted to hospital with a flare up of his ulcerative colitis. He has not responded to standard therapy so intravenous ciclosporin has been started. Which of the following regular medications that the patient is currently prescribed would you be most concerned about, if taken concurrently with the ciclosporin?

A 55-year-old woman is being treated for a severe bone infection with long-term oral Linezolid. Which of the following monitoring parameters is essential due to a potential serious side effect of this drug?

A 58-year-old male is admitted with Red Flag Sepsis of unknown focus. His NEWS2 score is 7, BP is 90/60mmHg, and his lactate is 4.1mmol/L. He has no known drug allergies. According to standard UK Sepsis Trust/NICE empirical guidelines for severe sepsis of unknown origin, which of the following is the most appropriate first-line intravenous antibiotic regimen to commence within the first hour?

A 76-year-old male has presented to you with his daughter to discuss recent onset confusion. He has been struggling with a chest infection over the past three days for which he was prescribed doxycycline. She is concerned that this has yet to take effect. You notice his skin appears to be mottled on his legs. Basic observations:

• Temperature: 38.8°C

• Oxygen saturations: 92%

• Heart rate: 110 bpm

• Respiratory rate: 26 bpm

• Blood pressure: 99/63 mmHg

What is the most appropriate management for this patient?

A 42-year-old woman has been treated with long-term oral antibiotics for acne vulgaris by her GP. She now presents with fatigue, itching, dark urine, and yellowing of the eyes. Blood tests show a cholestatic pattern of liver injury with raised ALP and bilirubin. Which antibiotic is MOST likely responsible?

A 30-year-old man is prescribed antibiotics for chest infection. After 5 days, he attends A&E with severe sunburn-like skin reaction despite minimal sun exposure. He has been working outdoors intermittently. Which TWO antibiotics are most likely responsible for this adverse effect?

A 60-year-old man with no allergies presents with a painful, hot, erythematous lower limb rash consistent with uncomplicated cellulitis. He is otherwise well and systemically stable. She has a penicillin allergy. Which is the MOST appropriate first-line antibiotic?

A 25-year-old woman presents with 10 days of worsening sinus pain, purulent nasal discharge, and facial pressure. She has no penicillin allergy and no comorbidities. Which antibiotic is MOST appropriate first-line management?

A 7-year-old child is diagnosed with scarlet fever confirmed by clinical presentation of sore throat, fever, and sandpaper-like rash. The child has no drug allergies. What is the MOST appropriate first-line antibiotic according to nice guidelines?

A 70-year-old man is admitted with suspected sepsis secondary to pneumonia. He is hypotensive and tachycardic. Blood cultures are taken and IV antibiotics are required immediately. Which regimen is most appropriate empirical treatment according to nice cks?

A patient is started on flucloxacillin for a suspected staphylococcal skin infection. The pharmacist is asked to counsel the patient on administration. Which is the MOST appropriate advice?

A 33-year-old patient is prescribed metronidazole for anaerobic infection. During counselling, which advice is MOST important to prevent serious adverse effects?

A patient being treated for community-acquired pneumonia develops muscle weakness and laboratory findings show hyperkalaemia. Which antibiotic is most likely responsible?

A patient develops palpitations and dizziness shortly after starting antibiotic treatment for atypical pneumonia. ECG shows prolonged QT interval. Which antibiotic is most likely responsible?

A 28-year-old patient on antibiotic therapy for UTI reports confusion, agitation, and suicidal ideation. Which antibiotic is most likely responsible?

A woman presents with dysuria, frequency, and no fever. She is diagnosed with uncomplicated UTI. Which antibiotic is first-line?

A woman presents with thin, grey vaginal discharge and fishy odour. Diagnosis is bacterial vaginosis. What is first-line treatment?

A patient reports metallic taste during treatment for anaerobic infection following dental surgery. Which antibiotic is most likely responsible?

A 58-year-old woman presents with severe diarrhoea, abdominal cramping, and fever 7 days after completing a course of clindamycin for a dental infection. She reports frequent watery stools with a foul smell and increasing lethargy. Stool testing is pending, but clinical suspicion is high for a toxin-mediated colitis. She has no recent travel history or dietary changes. Which organism is the MOST likely cause of her symptoms, and which antibiotic exposure is the primary precipitating factor?

A 72-year-old man with a history of chronic urinary tract infections is prescribed an antibiotic after urine culture results. He is also taking warfarin, ramipril, and furosemide. A few days into therapy, he presents to his GP with easy bruising and nosebleeds. Blood tests reveal an elevated INR significantly above his therapeutic range. The pharmacist suspects a drug interaction between his antibiotic and warfarin metabolism. Which antibiotic is MOST likely responsible for this interaction?