A Request for Antibiotics Before a Flight
A 38-year-old teacher comes in requesting 'something strong' for a cough. She has coughed for 9 days - initially dry, now productive of yellow-green sputum - with subjective fever up to 37.9 °C at home and sore throat and nasal congestion that are improving. Exam: T 37.7 °C, HR 88, RR 18, SpO2 98%, coarse breath sounds without crackles or wheeze, no accessory muscle use, tympanic membranes clear, pharynx mildly erythematous without exudate. She has well-controlled asthma on budesonide-formoterol as needed. She is flying to a conference in 48 hours and states plainly that she cannot be sick.
1. What is your working diagnosis, and how do the sputum color and the fever influence it?
Read the worked answer
Working diagnosis: acute viral bronchitis. The features fit - a cough lasting about a week that has shifted from dry to productive, an improving upper respiratory prodrome, and a normal respiratory exam.
Sputum color is not a bacterial test. Yellow or green reflects myeloperoxidase from inflammatory cells, not bacterial infection. Using color to trigger antibiotics is one of the most common and most consequential errors in outpatient practice.
The fever is low grade and does not discriminate. A temperature of 37.7 °C is compatible with viral illness; it is not the high fever with rigors that would push you toward bacterial pneumonia.
Pneumonia is unlikely, based on vitals rather than auscultation. HR 88, RR 18, SpO2 98%, and no focal findings mean a chest radiograph is not required for this decision. Coarse breath sounds occur with cough and secretions and are not evidence of consolidation.
Do not overlook the asthma. Current viral illness is a common trigger for exacerbation; ask directly about nighttime symptoms, rescue inhaler use, and peak flow if she monitors. That is the one part of this visit that can genuinely escalate.
Also consider pertussis if the cough becomes paroxysmal or she has an exposure, and remember that post-viral cough commonly lasts three to four weeks - a fact she needs to hear before she leaves, or she will return in a week convinced she is worse.
2. Write how you would handle the visit, including what you actually say to her, to end without an antibiotic and without losing the relationship.
Read the worked answer
Structure of the conversation:
- Name her goal first. 'You have a conference in 48 hours and you can't afford to be sick. Let's talk about whether an antibiotic got you there, and what would actually get you there.'
- Give the diagnosis plainly. 'This is bronchitis from a virus. It is not pneumonia - your lungs sound clear and your oxygen is normal.'
- Address the sputum head-on, because that is what convinced her. 'The color of the phlegm worries people, but it comes from your immune cells fighting the virus. It doesn't tell us whether bacteria are involved.'
- State the harm honestly and briefly. Antibiotics do not shorten viral bronchitis, they carry diarrhea, rash, and C. difficile risk, and they will not have her well for the flight either way.
- Replace with a plan, not a refusal. Honey for cough, NSAIDs or acetaminophen for discomfort, saline nasal irrigation, adequate hydration, albuterol if wheeze develops, and a written symptom timeline explaining that cough can persist 3 to 4 weeks and gradually improve.
- Explicit safety net. Return or call for shortness of breath at rest, fever above 39 °C, chest pain, coughing blood, or a cough that is worsening rather than improving after 3 weeks.
- Document shared decision-making - that you explained why antibiotics are not indicated and that she understood and agreed to the plan. This protects the relationship and the record.
On a delayed prescription: it is defensible in some bronchitis cases as a safety valve, but here the clinical picture is clear and unambiguous. Offering a script 'just in case' undercuts the explanation you just gave and trains her to expect one next time.
Judgment point: she is not drug-seeking; she is scared about a flight. The prescription she actually needs is a credible explanation plus a timeline.
3. What findings at this visit would have changed your decision, and how would you make that decision on the spot?
Read the worked answer
Reasons to reconsider, grouped by what they signal:
Bacterial pneumonia: RR above 24, SpO2 below 94%, temperature ≥39 °C with rigors, focal crackles or bronchial breath sounds, confusion, or a heart rate disproportionate to fever. Any of these would trigger a chest radiograph and treatment rather than reassurance.
Asthma exacerbation: wheeze, nighttime wakening, increased rescue inhaler use, or a peak flow well below personal best. Management shifts to corticosteroids and bronchodilator intensification, not antibiotics.
Pertussis: paroxysmal fits, an inspiratory whoop, post-tussive vomiting, or a known exposure. That changes treatment to macrolide and triggers public health reporting and contact prophylaxis.
Other diagnoses: unilateral facial pain with purulent nasal discharge (sinusitis), focal pharyngeal exudate with adenopathy and absent cough (strep pharyngitis), or hemoptysis and weight loss in a long-standing cough requiring imaging.
How to decide in real time: the presence or absence of abnormal vital signs does most of the work. With normal rate, normal oxygen, and no focal lung findings, imaging and antibiotics add nothing but cost and risk. One abnormal vital sign in the right context flips the decision.
The discipline required: make the determination and document it at the visit, rather than reflexively ordering a radiograph 'to be safe' and then treating the patient's expectation instead of the findings.