What is a stone formed in the Kidney or Renal Pelvis called?

UP CHO - 2018

Medical & Surgical Nursing

Easy

Appeared in: UP CHO - 2018

Explanation

Renal calculi is the correct medical term for stones that form within the kidney or its central collecting part, the renal pelvis.
This condition is also commonly referred to as kidney stones or by the more specific medical term nephrolithiasis.
The term 'renal' pertains to the kidney, and 'calculi' (singular: calculus) means stones, making it the most precise description.
These stones are formed from the crystallization of minerals and salts in concentrated urine.

Option B: 'Major Calculi' is not a standard or recognized medical classification for kidney stones. While stones are described by their size (e.g., in millimeters) or shape (e.g., staghorn), 'major' is not a formal term.
Option C: A 'callus' is a term used in dermatology to describe a thickened area of skin or in orthopedics for the bony and cartilaginous material that forms at a fracture site during healing. It is completely unrelated to the urinary system.
Option D: This option is incorrect because a correct term is provided in the options. Option A, 'Renal Calculi,' accurately names the condition described.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Medical terminology for kidney stones as background academic context rather than a clinical decision trigger.
Nurses are central to managing patients with renal calculi. Key responsibilities include assessing and managing acute pain (renal colic), promoting hydration to facilitate stone passage, and meticulously straining all urine to capture the stone for analysis.
Analysis of the stone's composition is critical as it guides patient education on specific dietary modifications (e.g., limiting oxalate for calcium oxalate stones) and lifestyle changes to prevent recurrence.
A primary nursing role is to monitor for complications such as urinary tract infection (fever, chills) or complete obstruction (anuria), which are medical emergencies requiring immediate intervention.

How to Approach the Question

First, identify the core of the question, which asks for the specific medical term for a stone located in the kidney or renal pelvis.
Analyze the keywords in the stem: 'stone', 'Kidney', and 'Renal Pelvis'. The term 'Renal' is a direct reference to the kidney.
Evaluate the options based on your knowledge of medical terminology. 'Calculi' is the plural form of 'calculus,' which means stone.
Combine the keywords: 'Renal' (kidney) + 'Calculi' (stones) directly translates to 'kidney stones'. This makes 'Renal Calculi' the most logical answer.
Rule out the other options. 'Major Calculi' is not a standard classification. A 'callus' relates to skin or bone. Therefore, an answer exists, and 'None of the above' is incorrect.
Confirming that 'Renal Calculi' is the correct term solidifies your choice.

Concept Tested & Keywords

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E6 Pathology-Vandana Puri & Kavita Gaur Textbook of Pathology and Genetics p. 313-315

E6 Pathology- ROBBINS & COTRAN PATHOLOGIC BASIS OF DISEASE 10TH Ed p. 947-949