WCL Staff Nurse - 2019
Applied Anatomy
Medium

While catheterizing the bladder of a pregnant lady, the following facts about the female urethra is true, EXCEPT?

Appeared in: WCL Staff Nurse - 2019

Explanation

  • The statement that the female urethra is posterior to the vaginal orifice is anatomically incorrect, making it the correct answer for this 'EXCEPT' question.
  • The urethral meatus is located in the vestibule of the vulva, anterior to (in front of) the vaginal opening and posterior to (behind) the clitoris.
  • All other options provided are factually correct statements about the female urethra.

Why Other Options Were Wrong

  • Option A: This is a true statement. The female urethra is approximately 3 to 4 cm long, which corresponds to about 1.5 inches.
  • Option C: This is a true statement. The urethra passes through the pelvic floor muscles, specifically piercing the urogenital diaphragm (perineal membrane) on its path to the exterior.
  • Option D: This is a true statement. Compared to the male urethra, the female urethra is short and follows a relatively straight path, offering minimal resistance during procedures like catheterization.

Related Visual

Visual explanation — Related Visual
Clinical Relevance
  • Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Anatomy of the female lower urinary tract as background academic context rather than a clinical decision trigger.
  • Accurate knowledge of female pelvic anatomy is critical for nurses to perform bladder catheterization safely and successfully, minimizing patient discomfort and risk of injury or infection.
  • Misidentifying the meatus and inserting the catheter into the vagina is a common error. If this occurs, the catheter is contaminated and must be discarded, and a new sterile catheter must be used to prevent introducing vaginal flora into the bladder.
  • In pregnant women, perineal tissues may be swollen (edematous), making it more challenging to locate the urethral meatus. Good lighting, proper patient positioning, and a gentle technique are essential.
How to Approach the Question
  • First, identify the keyword 'EXCEPT' in the question stem. This signals that you must find the one false statement among the four options.
  • The question asks about the anatomy of the female urethra. Your task is to evaluate the factual accuracy of each option.
  • Recall the key anatomical features of the female urethra: its length, its position relative to other pelvic structures (vagina, urogenital diaphragm), and its general course.
  • Systematically check each option against your anatomical knowledge.
  • Option A (length), C (piercing diaphragm), and D (straight course) are known true facts about the female urethra.
  • Option B states the urethra is posterior to the vagina. This contradicts the known anatomical position where the urethra is anterior to the vagina. Therefore, this is the false statement and the correct answer.
Concept Tested & Keywords
  • Concept Tested: Anatomy of the female lower urinary tract
  • Stem keywords: catheterizing, pregnant lady, female urethra
  • Lead-in keywords: EXCEPT
  • Clinical cues: Age/sex group narrows the expected diagnosis, intervention, or normal reference range.
  • Negative lead-in flag: Question asks for the exception or the false statement.

Question ID

Qnd4AwtUgslzkZmj34q96H

Reference Book

E6 Nursing Fundamentals Potter Perry 12e Part 5 p. 234-236

E6 Gynecology Williams p. 394-401

E6 Nursing Fundamentals Taylor p. 599-601

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