What is involved in a comprehensive mono (monolithic) physical assessment?

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Physical Assessment for Infectious Mononucleosis

A comprehensive physical assessment for suspected or confirmed infectious mononucleosis should focus on vital signs, pharyngeal examination, lymphadenopathy assessment, abdominal palpation for splenomegaly/hepatomegaly, and skin inspection for rash or jaundice. 1, 2

Initial Vital Signs and General Assessment

  • Measure temperature, pulse rate, respiratory rate, blood pressure, and oxygen saturation to identify fever and assess hemodynamic stability 1, 2
  • Calculate BMI using height and weight measurements 1, 2
  • Evaluate overall appearance for signs of acute illness, fatigue, or distress 1, 2
  • Assess level of consciousness and mental status 1, 2

Head and Neck Examination

The head and neck examination is critical in mononucleosis, as pharyngitis and lymphadenopathy are hallmark features:

  • Inspect the oropharynx for tonsillar enlargement, exudates (typically white or gray patches), palatal petechiae, and uvular edema 1, 2
  • Palpate cervical lymph nodes bilaterally (anterior and posterior chains) for enlargement, tenderness, mobility, and consistency—posterior cervical lymphadenopathy is particularly characteristic 1, 2
  • Examine the head for symmetry and any lesions 1, 2
  • Palpate the thyroid gland to rule out concurrent thyroid pathology 1

Abdominal Assessment

Abdominal examination is essential to detect splenomegaly and hepatomegaly, which occur in approximately 50% and 10-15% of mononucleosis cases respectively:

  • Auscultate for bowel sounds and any vascular bruits 3
  • Inspect for distension or visible masses 3
  • Palpate carefully for splenomegaly (begin in the right lower quadrant and move toward the left upper quadrant to avoid missing an enlarged spleen) and hepatomegaly 1
  • Assess for tenderness, particularly in the left upper quadrant where splenic rupture risk exists 3
  • Palpate for any other masses or organomegaly 3

Skin Assessment

  • Perform comprehensive skin examination for maculopapular rash, which may appear spontaneously or following ampicillin/amoxicillin administration (occurs in 80-100% of mono patients given these antibiotics) 1, 2
  • Inspect for jaundice, which may indicate hepatic involvement 1, 2
  • Assess skin for petechiae or purpura, which may suggest thrombocytopenia 1, 2
  • Note skin color, moisture, temperature, and turgor 3

Cardiovascular and Respiratory Assessment

  • Auscultate heart for rate, rhythm, and presence of murmurs, gallops, or rubs to rule out rare cardiac complications 3, 1
  • Auscultate lungs for breath sounds, crackles, wheezes, or rubs 3
  • Inspect chest wall for symmetry of movement 3

Neurological Assessment

While uncommon, neurological complications can occur in mononucleosis:

  • Evaluate mental status and cognitive function for signs of encephalitis or meningitis 3, 1
  • Assess coordination and gait if neurological symptoms are present 3
  • Test deep tendon reflexes if indicated 3

Critical Pitfalls to Avoid

  • Never palpate the spleen aggressively in confirmed or suspected mononucleosis due to risk of splenic rupture—use gentle palpation technique only 1
  • Do not dismiss posterior cervical lymphadenopathy as it is more specific for mononucleosis than anterior chain involvement 1, 2
  • Recognize that the classic triad (fever, pharyngitis, lymphadenopathy) may not be complete at initial presentation 4, 5
  • Document spleen size carefully if palpable, as this guides activity restrictions and follow-up 1

Documentation Requirements

  • Record all findings systematically, including specific measurements of lymph node size and organ enlargement 1, 2
  • Note the presence or absence of key findings (tonsillar exudates, splenomegaly, rash) as these guide diagnosis and management 1, 2
  • Document any contraindications to physical activity based on splenomegaly findings 3, 1

References

Guideline

Comprehensive Adult Assessment

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

Guideline

Comprehensive Physical Examination Guidelines

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

Guideline

Comprehensive Head-to-Toe Examination for Patients with Diabetes

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

Research

The process of conducting a physical assessment: a nursing perspective.

British journal of nursing (Mark Allen Publishing), 2006

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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