27M FEVER AND HEADACHE SINCE 6 DAYS

 23/10/2026

THIS PATIENT DATA WAS GATHERED BY ROLL NO 14 BATCH 2023AS PART OF HER COMPETENCE BASED LEARNING EVALUATION PORTFOLIO PREPARATION

THIS CASE OF 27M FEVER AND HEADACHE SINCE 6 DAYS

*History*

- *Age / Sex:* 27 years / Male

- *Occupation:* Delivery boy

*Chief Complaints*

- Fever - since 6 days

- Headache - since 6 days

*History of Present Illness (HOPI)*

- Asymptomatic 6 days ago, then developed fever which was gradual in onset, intermittent, with rise and fall over 1 hr.

- Fever associated with headache that was retro-orbital.

- H/o rash on anterior side of hand.

- H/o vomiting 4 days ago.

- No H/o epistaxis, 5-6 episodes noted [as written].

- H/o cough, which was productive from gums.

- No H/o bleeding.

- No H/o seizures.

*Past History*

- No similar complaints in past.

- No H/o DM / HTN / Asthma / TB.

- Has got ... [illegible]

*Investigations*

*CBC - Platelet Count*

- Latest: 1.0 lakh / cumm

- Reference Range: 1.5 - 4.0 lakh / cumm

*Platelet Trend*

- Day of admission - Day 1: 85,000 / cumm

- Day 2: 96,000 / cumm

- Latest: 1.0 lakh / cumm

*Provisional Diagnosis*

- Dengue

*Personal History*

- Diet: Mixed

- Appetite: Decreased

- Sleep: Adequate

- Bowel / Bladder: Normal

- Addictions: Drinks alcohol occasionally

- Smoking: Smokes cigarette once or twice, 3 times a day. Has not smoked since he was sick.

*Family History*

- No similar complaints in family.

- No H/o HTN / DM / TB / Epilepsy / Asthma.

*General Examination*

- Patient was conscious, well oriented to time, place, and person.

- Vitals:

    - BP: 125/60 mmHg

    - PR: [as written - illegible]

    - Temp: 98.8°F

*Systemic Examination*

- Abdomen: Soft, non-tender

- CVS: S1 S2 present, No murmur

- RS: Bilateral air entry present

Here are Socratic questions designed for medical students to critically evaluate this case report, organized by clinical reasoning steps:

1. History & Pathophysiology

 * Pathogen Association: Given the patient's occupation as a delivery boy spending significant time outdoors, what vector-borne illness is heavily suggested by a 6-day fever, retro-orbital headache, and rash?

 * Symptom Timeline: The patient's platelet count dropped to 85,000/\text{cumm} on Day 1 of admission and recovered to 1.0\text{ lakh}/\text{cumm}. In the natural history of dengue fever, what critical transition phase typically occurs around days 3 to 7 of illness?

 * Atypical Manifestations: The patient reported a productive cough from the gums and 5–6 episodes of epistaxis (nosebleeds). How do mucosal bleeding and gum bleeding fit into the WHO classification of dengue severity?

2. Clinical Examination & Findings

 * Hemodynamic Stability: The patient's blood pressure is recorded at 125/60\text{ mmHg} with a temperature of 98.8^\circ\text{F}. Why is monitoring pulse pressure (systolic minus diastolic blood pressure) particularly crucial during the defervescence phase of this provisional diagnosis?

 * Physical Signs: What specific dermatological sign (other than a general rash) might you look for on physical examination to support a dengue diagnosis, such as the "islands of white in a sea of red" phenomenon?

3. Investigations & Management

 * Thrombocytopenia Thresholds: At what platelet count threshold does standard dengue management shift from outpatient monitoring to strict inpatient admission and fluid management protocols?

 * Diagnostic Confirmation: While the provisional diagnosis is based on clinical presentation and platelet trends, what specific serological or molecular tests would you order to definitively confirm the etiology during the first week of symptoms?