Which of the following is NOT a sign of Costal Vertebral Angle Tenderness?

Costal Vertebral Angle (CVA) Tenderness is a clinical sign often used to assess for kidney issues, particularly conditions like pyelonephritis or other renal problems. When evaluating for signs of CVA tenderness, specific symptoms are typically associated with this condition.

The option that stands out as not directly indicating CVA tenderness is the difficulty breathing. While respiratory issues can arise in various medical contexts, they do not directly relate to the assessment of the kidneys or the flank region where CVA tenderness is examined. Back pain, kidney infections, and flank pain are more directly associated with problems in the urinary tract or kidneys, leading to CVA tenderness.

Back pain often overlaps with renal issues, as the kidneys are located retroperitoneally near the lower back. Kidney infections could cause CVA tenderness due to inflammation and pain signaling from the renal areas. Flank pain is also emblematic of kidney problems and directly correlates with the affected area assessed during a physical examination for CVA tenderness.

Therefore, difficulty breathing does not serve as a typical indicator of CVA tenderness compared to the other options, making it the correct choice in this context.