Hydronephrosis means?

ESIC Nursing Officer 2016 (Shift -2)

Medical Surgical Nursing

Easy

Appeared in: ESIC Nursing Officer 2016 (Shift -2)

Explanation

Hydronephrosis is the specific term for the dilation of the renal pelvis and calyces within the kidney.
This condition is a direct result of an obstruction to the outflow of urine, causing it to back up and swell the kidney.
The term literally translates to 'water in the kidney,' highlighting its specific location.
While obstruction can cause dilation elsewhere, 'hydronephrosis' is exclusively used for the kidney's collecting system.

Option A: This is too broad. Hydronephrosis specifically refers to the kidney, not the entire urinary system. Dilation of the entire system would involve multiple specific conditions.
Option C: Dilation of the ureter is specifically called 'hydroureter.' While it can occur with hydronephrosis (a condition called hydroureteronephrosis), it is a distinct term.
Option D: Dilation of the bladder is known as bladder distension or urinary retention. It is a separate condition from hydronephrosis, although a chronic bladder outlet obstruction can eventually cause hydronephrosis.

Visual 1: Diagram: A side-by-side comparison of a normal kidney and a kidney with hydronephrosis. The visual should clearly label the dilated renal pelvis and calyces in the affected kidney, contrasting with the normal structures.
Visual 2: Flowchart: A flowchart illustrating the pathogenesis of hydronephrosis, starting from 'Urinary Tract Obstruction,' leading to 'Urine Backup,' then 'Increased Pressure in Renal Pelvis,' and finally resulting in 'Dilation of Pelvis and Calyces (Hydronephrosis)' and 'Parenchymal Atrophy.'

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Definition of Hydronephrosis as background academic context rather than a clinical decision trigger.
Nursing Assessment: Nurses must be vigilant for signs of urinary tract obstruction, such as changes in urine output (oliguria or polyuria), flank pain, and signs of infection. A palpable abdominal mass in a newborn can be a sign of a hydronephrotic kidney.
Patient Safety: Unrelieved hydronephrosis can lead to irreversible kidney damage and chronic kidney disease. Prompt identification and reporting of symptoms are crucial for preventing long-term complications.
Post-Operative Care: Patients who have undergone pelvic or urologic surgery are at risk for ureteral injury or ligation, which can cause acute hydronephrosis. Nurses should closely monitor urine output and report any sudden decrease or absence of urine.

How to Approach the Question

Identify the core term: The question asks for the definition of 'Hydronephrosis.'
Break down the term: 'Hydro' relates to water (in this case, urine), and 'nephro' relates to the kidney. This points to a condition involving urine and the kidney.
Evaluate the options based on the term's components:
'Dilation of kidney' directly aligns with the 'nephro' part of the term.
'Dilation of ureter' (hydroureter) and 'Dilation of bladder' (distension) are incorrect because 'nephro' specifically means kidney.
'Dilation of whole urinary system' is too general for a specific term like hydronephrosis.

Concept Tested & Keywords

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