Systematic Focused Physical Examination of the Right Abdomen
The focused physical examination of the right abdomen should systematically assess for specific pathology using a structured sequence: inspection, auscultation, percussion, and palpation, followed by specialized provocative maneuvers (McBurney's, Rovsing's, psoas, obturator signs for appendicitis; Murphy's sign for cholecystitis; Carnett's sign for abdominal wall pathology).
General Examination Sequence
Initial Assessment
- Inspection: Observe for distension, surgical scars, asymmetry, or visible masses
- Auscultation: Perform BEFORE palpation to avoid altering bowel sounds; assess for presence, frequency, and quality of bowel sounds
- Percussion: Evaluate for tympany versus dullness; assess liver span in right upper quadrant
- Palpation: Begin with gentle superficial palpation away from the painful area, progressing to deeper palpation
Right Upper Quadrant Examination (Cholecystitis)
Murphy's Sign
Technique: Place hand below the right costal margin at the midclavicular line. Ask the patient to take a deep breath while applying steady pressure.
Positive finding: Sudden cessation of inspiration due to sharp pain when the inflamed gallbladder descends and contacts your palpating hand 1, 2.
Clinical significance: Highly specific for acute cholecystitis when combined with right upper quadrant tenderness and fever 3. However, sensitivity is reduced if patient has received pain medication prior to examination 3.
Pitfall: The sonographic Murphy's sign (tenderness when ultrasound probe compresses the gallbladder) has relatively low specificity for acute cholecystitis 3.
Right Lower Quadrant Examination (Appendicitis)
McBurney's Point Tenderness
Location: One-third the distance from the anterior superior iliac spine to the umbilicus
Technique: Apply direct pressure at McBurney's point with fingertips
Positive finding: Maximum tenderness at this location 4
Clinical significance: Most specific symptom for appendicitis, though appendix location varies 4. Note that in pregnant patients, pain location may not correlate reliably with appendicitis 5.
Rovsing's Sign
Technique: Apply deep palpation to the LEFT lower quadrant
Positive finding: Pain referred to the RIGHT lower quadrant during left-sided palpation 6, 7
Clinical significance: Suggests peritoneal irritation from appendicitis. Studies show this increases likelihood of appendicitis when positive but does not exclude disease when negative 7, 8.
Common error: The technique has been inconsistently described in literature and may differ from original reports 7.
Psoas Sign
Technique: With patient in left lateral decubitus position, passively extend the right hip OR have patient actively flex right hip against resistance while supine
Positive finding: Right lower quadrant pain with either maneuver 6, 9
Clinical significance: Indicates irritation of the psoas muscle by a retrocecal or retroileal appendix. Sensitivity approximately 16%, specificity 95% 8.
Obturator Sign
Technique: With patient supine, flex right hip and knee to 90 degrees, then passively internally and externally rotate the hip
Positive finding: Right lower quadrant or hypogastric pain 6, 10
Clinical significance: Suggests pelvic appendicitis irritating the obturator internus muscle. Less commonly assessed but useful for pelvic appendix location.
Rebound Tenderness (Blumberg Sign)
Technique: Apply gradual deep pressure in the right lower quadrant, then rapidly release
Positive finding: Sharp pain upon release of pressure 6, 7
Clinical significance: Indicates peritoneal irritation. Sensitivity approximately 50%, specificity 23% 8.
Critical pitfall: Students and clinicians frequently perform this incorrectly, often avoiding the right lower quadrant entirely 6. The technique must be standardized and performed directly over the area of suspected pathology.
Abdominal Wall Pathology
Carnett's Sign
Technique: Identify point of maximal tenderness. Have patient tense abdominal muscles by lifting head and shoulders off examination table or performing straight leg raise while you maintain pressure at the tender point
Positive finding: Pain that INCREASES or remains unchanged with muscle tensing 10
Clinical significance: Distinguishes abdominal wall pain from intra-abdominal pathology. If pain decreases with muscle tensing, suspect intra-abdominal source. If pain increases or persists, suspect abdominal wall pathology (muscle strain, nerve entrapment, hernia).
Key Clinical Considerations
Limitations of Physical Examination
Physical examination signs have limited accuracy when used in isolation 8. Studies demonstrate:
- Anamnesis and physical examination alone offer limited accuracy for acute abdomen 8
- Positive tests increase likelihood of disease but negative tests do not exclude pathology 7
- Method of performing signs is often not standardized, limiting reliability 7
Integration with Clinical Assessment
The physical examination must be integrated with:
- Clinical scoring systems (Alvarado score, Appendicitis Inflammatory Response score) 11, 12, 4
- Laboratory markers (WBC with differential, C-reactive protein, neutrophil-to-lymphocyte ratio) 12, 4
- Imaging studies: Ultrasound as first-line for right upper quadrant pain 1, 3; CT for right lower quadrant pain 1, 11
Special Populations
- Pregnant patients: Appendicitis pain location may not follow typical patterns; ultrasound is preferred initial imaging 5, 12
- Critically ill patients: Gallbladder abnormalities common without acute cholecystitis; physical signs less reliable 3
- Pediatric patients: Physical examination combined with biomarkers and ultrasound improves diagnostic accuracy 12
Documentation
When documenting, specify:
- Exact location and quality of tenderness
- Which specific signs were tested and their results
- Patient's response to each maneuver
- Whether pain medication was administered prior to examination (affects Murphy's sign reliability)