Fatigue resident survival guide

Fatigue Resident Survival Guide
Overview
Causes
FIRE
Diagnosis
Treatment
Do's
Don'ts

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mounika Lakhmalla, MBBS[2]Tayyaba Ali, M.D.[3]

Synonyms and keywords:: Approach to weakness, Approach to tiredness, Approach to lethargy, Approach to debility

Overview

Fatigue is a common nonspecific symptom due to a wide range of etiologies.Patients often use this term to describe a range of issues like difficulty initiating activity; decreased capacity to maintain activity; Trouble with concentration, memory, and emotional stability; or sleepiness or an uncontrollable need to sleep. The term fatigue can sometimes be used synonymously with Tiredness. Fatigue can present alone as a primary symptom or in association with other localizing symptoms.

Causes

Life Threatening Causes

Life-threatening causes include conditions that may result in death or permanent disability within 24 hours if left untreated.

• Active Malignancy

Common Causes

• Infection
• Diabetes
• Hypercalcemia
• Anemia
• Rheumatologic diseases
  • Fibromyalgia
  • Rheumatoid Arthritis
  • Polymyalgia Rheumatica
  • Systemic Lupus Erythymatosus
  • Sjögren's syndrome
• Inflammatory Bowel Disease
• Neurologic injury
• Endocrine Causes:
  • Adrenal insufficiency
  • Thyroid insufficiency
  • Hyperthyroidism
  • Electrolyte abnormalities
• Chronic Hepatic diseases.
• Renal insufficiency
• Cardiopulmonary diseases
  • Congestive heart failure
  • Chronic obstructive pulmonary disease
  • Peripheral vascular disease
  • Atypical angina
  • Obstructive sleep apnea.
• Myopathy
• Medications & Substance abuse
  • Sedative-hypnotics
  • Analgesics
  • Antihypertensives
  • Antidepressants
  • Muscle relaxants
  • Opioids
  • Antibiotics
  • Alcohol
  • Marijuana
  • Cocaine/other stimulants
  • Anticancer agents (like cisplatin and Etoposide)
• Psychological Causes:
  • Depression
  • Anxiety
  • Somatization disorder
  • Dysthymic disorder
  • chronic fatigue syndrome

• Multiple sclerosis
• After malignancy treatment, patients can experience different patterns of fatigue from chemotherapy, radiation treatment, or surgery.

Diagnosis

The approach to the diagnosis of fatigue is based on a step-wise testing strategy. Below is an algorithm summarising the identification and laboratory diagnosis of fatigue.

• Diagnostic evaluation of fatigue when it presents as a predominant symptom includes a detailed history and physical examination, basic laboratory studies, and updated cancer screening interventions.
• Additional diagnostic testing depends on associated localized findings.
• Extensive laboratory studies with out a suggestive history or physical exam findings is of limited diagnostic utility while evaluating chronic fatigue.

Seek proper history, ask patients to describe in their own words, what do they mean by fatigue? This will help distinguish fatigue from ❑ somnolence ❑ muscle weakness The history should also determine the characteristics, severity, and temporal pattern of fatigue: ❑ Onset – Abrupt or gradual, relationship to illness or life event ❑ Course – Stable, improving, or worsening ❑ Duration and daily pattern ❑ Factors that alleviate or exacerbate it ❑ Impact on daily life – Ability to work, socialize, participate in family activities ❑ Accommodations that the patient/family has had to make to deal with symptom

Characterize the cardiac symptoms: ❑ Dyspnea on exertion ❑ Orthopnea ❑ Leg swelling

Characterize the pulmonary symptoms: ❑ Dyspnea ❑ Chronic cough ❑ Sputum production ❑ Snoring ❑ Interrupted breathing during sleep

Characterize the endocrinologic / metabolic symptoms: ❑ Cold intolerance ❑ Weight gain ❑ Constipation ❑ Dry skin ❑ Heat intolerance ❑ Weight loss ❑ Diarrhea ❑ Moist skin ❑ Nausea/vomiting ❑ Mental status changes ❑ Decreased urine ❑ Abdominal distention ❑ Gastrointestinal bleeding ❑ Salt craving ❑ Gastrointestinal complaints ❑ Malaise ❑ Cognitive dysfunction ❑ Anorexia ❑ Polydipsia/polyuria

Characterize the hematologic / neoplastic symptoms: ❑ Dizziness ❑ Weakness ❑ Palpitations ❑ Dyspnea ❑ Weight loss

Characterize the Infectious diseases symptoms: ❑ Fever/chills ❑ Sore throat ❑ Tender lymph nodes ❑ Nausea/vomiting ❑ Abdominal discomfort ❑ Weight loss ❑ Night sweats ❑ Myalgias

Characterize the rheumatologic symptoms: ❑ Chronic diffuse muscle pain ❑ Aching/morning stiffness of shoulders, neck, and hips

Characterize the psychological symptoms: ❑ Sad mood ❑ Anhedonia ❑ Altered sleep ❑ Cognitive dysfunction ❑ Generalized nervousness ❑ Panic attacks ❑ Phobias ❑ Multiple chronic constitutional and localized complaints

Examine the patient: ❑ Elevated jugular venous distension ❑ Peripheral edema ❑ S3 gallop ❑ Inspiratory rales

Examine the patient: ❑ Evidence of hyperinflation ❑ Wheezing ❑ Rales ❑ Obesity ❑ Hypertension

Examine the patient: ❑ Bradycardia ❑ Goiter ❑ Slow deep tendon reflex relaxation phase ❑ Tachycardia ❑ Ophthalmopathy ❑ Hypertension ❑ Peripheral edema ❑ Jaundice ❑ Palmar erythema ❑ Gynecomastia ❑ Splenomegaly ❑ Evidence of ascites ❑ Hypotension ❑ Hyperpigmentation ❑ Vitiligo

Examine the patient: ❑ Tachycardia ❑ Pallor

Examine the patient: ❑ Fever ❑ Exudate pharyngitis ❑ Tender cervical adenopathy ❑ Jaundice ❑ Tender hepatomegaly ❑ New (regurgitant) murmur ❑ Cough ❑ Chest pain ❑ Dyspnea ❑ Hemoptysis

Examine the patient: ❑ Multiple "tender points" on palpation ❑ Decreased range of motion of shoulders, neck, and hips

Examine the patient: ❑ Tachycardia ❑ Muscle tension

Diagnostic work-up: ❑ Chest radiograph ❑ Echocardiogram

Diagnostic work-up: ❑ Chest radiograph ❑ Sleep study

Diagnostic work-up: ❑ Thyroid function tests ❑ Renal function tests/ serum electrolytes ❑ Hepatic function tests ❑ Morning cortisol/ACTH, ACTH stimulation test ❑Serum sodium level ❑Serum calcium level

Diagnostic work-up: ❑ Complete blood count

Diagnostic work-up: ❑ Complete blood/differential count ❑ Monospot ❑ Hepatic function tests ❑ Viral hepatitis serologies ❑ HIV serology ❑ Blood cultures ❑ Echocardiogram ❑ PPD/gamma-interferon assay ❑ Chest radiograph

Diagnostic work-up: ❑ Erythrocyte sedimentation rate

Diagnostic work-up: ❑ Screening tests (eg, PHQ-2, PHQ-9, GAD-7, SSS-8

Consider differential diagnosis: ❑ Congective heart failure ❑ Atypical angina

Consider differential diagnosis: ❑ Chronic obstructive pulmonary disease ❑ Sleep apnea

Consider differential diagnosis: ❑ Hypothyroidism ❑ Hyperthyroidism ❑ Chronic renal disease ❑ Chronic hepatic disease ❑ Adrenal insufficiency ❑ Hyponatremia ❑ Hypercalcemia

Consider differential diagnosis: ❑ Anemia ❑ Occult malignancy

Consider differential diagnosis: ❑ Mononucleosis syndrome ❑ Viral hepatitis ❑ HIV infection ❑ Subacute bacterial endocarditis ❑ Tuberculosis

Consider differential diagnosis: ❑ Fibromyalgia ❑ Polymyalgia rheumatica

Consider differential diagnosis: ❑ Depression ❑ Anxiety disorder ❑ Somatization disorder

Treatment

Shown below is an algorithm summarizing the treatment of [[disease name]] according the the [...] guidelines.

Do's

• The content in this section is in bullet points.

Don'ts

• The content in this section is in bullet points.

References

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References