General Inspection: Key Components to Evaluate
During general inspection of a patient, systematically evaluate vital signs, overall appearance and activity level, skin changes, body habitus/anthropometry, signs of distress or organ dysfunction, and specific findings relevant to the suspected condition.
Core Elements of General Inspection
Vital Signs and Basic Parameters
General inspection begins with assessment of fundamental physiological markers 1:
- Blood pressure (both systolic and diastolic)
- Heart rate and rhythm
- Respiratory rate
- Oxygen saturation (pulse oximetry)
- Temperature
These parameters provide immediate insight into hemodynamic stability and potential organ dysfunction.
Overall Appearance and Activity Level
Observe the patient's general appearance and activity level, which provides an important overall impression of health status 2. This includes:
- Level of consciousness and alertness
- Degree of distress or comfort
- Posture and positioning
- Spontaneous movements and mobility
Skin and Surface Examination
Visual inspection of the skin reveals critical diagnostic information 1, 3:
- Color changes (pallor, cyanosis, jaundice, erythema)
- Rashes or lesions
- Signs of trauma
- Stigmata of coagulopathies or platelet disorders
- Embolic lesions (Janeway lesions, Osler nodes)
- Subcutaneous emphysema
- Edema or swelling
Body Habitus and Anthropometry
For patients requiring ongoing assessment, accurate anthropometric measurements are essential 2:
- Weight
- Height/length
- Body mass index (BMI)
- Head circumference (when relevant)
These measurements should be plotted on appropriate reference charts and compared to previous values to detect changes over time.
Signs of Organ System Dysfunction
Look for specific indicators of systemic disease:
Cardiovascular signs:
- Jugular venous distension
- Peripheral edema
- Signs of congestive heart failure 1
Respiratory signs:
- Work of breathing
- Use of accessory muscles
- Stridor or audible wheezing
- Drooling (suggesting airway compromise) 4
Neurological signs:
- Mental status changes
- Focal neurological deficits
- Compensatory head positioning 5
Facial and Head Examination
When facial or head pathology is suspected 6:
- Facial symmetry
- Swellings or masses
- Muscle hypertrophy
- Signs of trauma
- Cranial nerve function
Context-Specific Findings
For suspected infection: Look for fever, cervical erythema, tenderness, or subcutaneous emphysema indicating complications 4.
For cardiac conditions: Assess for cyanosis, clubbing, signs of heart failure, and changes in auscultation findings 7.
For trauma: Examine for visible injuries, deformities, asymmetries, and signs of internal injury 5.
Common Pitfalls to Avoid
- Don't skip vital signs - they provide objective data that may contradict subjective appearance
- Don't focus only on the chief complaint area - systemic diseases manifest with multiple signs
- Don't dismiss subtle asymmetries - small changes can indicate significant pathology
- Don't perform inspection in poor lighting - adequate illumination is essential for detecting color changes and subtle findings
Integration with Further Assessment
General inspection should guide the direction and intensity of subsequent examination and testing 8. Abnormal findings on inspection warrant more detailed focused examination of the affected system and may indicate need for urgent intervention before completing the full assessment 1, 5.
The inspection phase typically takes minimal time but provides maximum diagnostic yield when performed systematically 3. Document all findings clearly to enable comparison during follow-up assessments 7.