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Dr Usman Javaid
Dr Usman Javaid
Gastroenterologist
General Adult Medicine

Persistent Fever Evaluation — treatment in Lahore

Also known as: Pyrexia · Prolonged Fever · Fever of Unknown Origin

Fever lasting more than a week, or with concerning features, deserves a methodical investigation rather than reflexive antibiotics. In Pakistan, typhoid, malaria, hepatitis, TB, and dengue all present similarly in the early stages.

Dr Usman Javaid
Medically reviewed
Dr Usman Javaid · MPH, FRSPH (UK)
Last reviewed
Evidence-based

Overview

A fever that won't go — typhoid, malaria, TB, hepatitis, atypical infections, autoimmune disease — needs a methodical approach, not just empirical antibiotics.

Signs & symptoms of Persistent Fever Evaluation

If you recognize one or more of these, it may be worth a consultation:

  • Fever > 7 days
  • Night sweats, rigors
  • Weight loss
  • Joint or muscle pain

Causes & risk factors

Several factors can contribute to Persistent Fever Evaluation. Identifying yours guides the treatment plan.

  • Typhoid (Salmonella typhi)
  • Malaria
  • Dengue
  • Hepatitis A, B, C, or E
  • Tuberculosis
  • Bacterial infections (pneumonia, UTI, abscess)
  • Autoimmune disease
  • Malignancy (lymphoma)
  • Drug fever

How Persistent Fever Evaluation is diagnosed

We order tests selectively — only what changes the plan.

  • CBC, peripheral smear (malaria)
  • Blood cultures, typhoid serology
  • Liver enzymes, hepatitis screening
  • Chest X-ray, abdominal ultrasound

Treatment options

Treatment for Persistent Fever Evaluation is personalized — the right plan depends on your symptoms, test results, and life situation.

  1. 1 Identify the cause before treating
  2. 2 Empirical therapy in severe cases under expert guidance
  3. 3 Avoid unnecessary antibiotics for viral causes

When should you see a doctor about Persistent Fever Evaluation?

Reach out without delay if you notice any of the following.

  • Fever >7 days
  • High fever (>39°C) with rigors
  • Jaundice with fever
  • Rash with fever
  • Severe headache
  • Persistent vomiting
Dr Usman Javaid
Author & medical reviewer

Dr Usman Javaid

Gastroenterology & Medicine Diplomat · DIP (Gastro) UK · DIP (Hepatology) UK · DIP (Diabetes) UK · MCPS FM-TC · MPH · FRSPH (UK) · FRCP (Colombo) · Organ Transplant Advisor · CHPE (NUMS) · Preventive Medicine Specialist · Owner of Javaid Poly Clinic.

This page was medically reviewed by Dr Usman Javaid on . Content is updated when new evidence or guidelines emerge.

Medical disclaimer: This page is for educational purposes and does not replace medical consultation. If you have symptoms of Persistent Fever Evaluation or any other condition, please book a consultation. In emergencies, call 1122 or visit your nearest emergency department.

A clear plan starts with a careful conversation.

If something feels off — pain, reflux, fatigue, jaundice, weight change — don't wait it out alone. Book a consultation and let's understand it together.

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