Lloyd's sign
Lloyd's Sign is a clinical test used in medical practice to identify the presence of irritation or inflammation in the kidneys. It is named after the British surgeon, Sir George Thomas Beatson Lloyd, who first described it.
Overview[edit | edit source]
Lloyd's Sign is elicited by gently percussing the area of the back overlying the kidney (the costovertebral angle) with the ulnar aspect of the clinician's fist. The test is positive if this percussion elicits pain. A positive Lloyd's Sign is suggestive of pyelonephritis, kidney stones, or other forms of kidney disease.
Clinical Significance[edit | edit source]
Lloyd's Sign is a useful clinical tool in the diagnosis of renal pathology. It is particularly helpful in differentiating kidney diseases from musculoskeletal or gastrointestinal conditions, which can present with similar symptoms. However, it is not specific and should be used in conjunction with other clinical findings and diagnostic tests.
Limitations[edit | edit source]
While Lloyd's Sign is a valuable tool in the clinical setting, it is not without limitations. The test may be negative in patients with chronic kidney disease or those who have a high pain threshold. Additionally, it may be positive in conditions not related to the kidneys, such as musculoskeletal disorders.
See Also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD
