During examination of the abdomen, percussion should be done prior to palpation because these procedures may:

NHM UP Staff Nurse - 2019

Nursing Foundation

Medium

Appeared in: NHM UP Staff Nurse - 2019

Explanation

The correct sequence for abdominal assessment is unique: Inspection, Auscultation, Percussion, and then Palpation (IAPP).
Auscultation is performed before percussion and palpation specifically to prevent the alteration of bowel sounds.
Physical manipulation from percussion and palpation stimulates peristalsis (intestinal movement), which can artificially increase the frequency of bowel sounds.
Listening before touching allows the nurse to assess the patient's true baseline bowel motility, which is essential for accurate diagnosis.

Option B: While deep abdominal massage might have a minor effect on GI secretions, it is not the primary reason for the established assessment sequence. The impact on bowel sounds is far more significant for immediate diagnostic purposes.
Option C: Distention is a physical finding that is observed during inspection and confirmed with palpation. The examination process itself does not alter the underlying cause of distention (like gas, fluid, or a mass).
Option D: Percussion and palpation are techniques used to detect the presence of abdominal fluid (ascites), for example, by eliciting a fluid wave or shifting dullness. These actions do not change the amount or presence of the fluid.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Abdominal Assessment Sequence as background academic context rather than a clinical decision trigger.
Accurate assessment of bowel sounds is critical for identifying serious conditions. Absent sounds can indicate a paralytic ileus, while high-pitched, hyperactive sounds can signal an early bowel obstruction.
Performing the abdominal assessment out of order can lead to a misinterpretation of bowel sounds (e.g., documenting hyperactive sounds that were actually caused by palpation), potentially leading to incorrect clinical decisions.
What if? A nurse assesses a post-operative patient and hears hyperactive bowel sounds after having already palpated the abdomen. The nurse should recognize this finding may be artificially induced, document that the assessment was performed out of sequence, and plan to re-assess later to establish a true baseline.

How to Approach the Question

First, identify the core subject of the question, which is the procedure for an abdominal examination.
Recall that the assessment sequence for the abdomen is different from other body systems.
Remember the correct order using the mnemonic IAPP: Inspection, Auscultation, Percussion, Palpation.
Focus on the key difference: Auscultation (listening) comes before any form of touch (percussion or palpation).
Analyze the reason for this unique order. Touching the abdomen can stimulate activity within the intestines.
Evaluate the options to see which one reflects this rationale. Altering bowel sounds is the direct consequence of stimulating the intestines.

Concept Tested & Keywords

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E6 Nursing Fundamentals Taylor p. 618-620

E6 Nursing Brunner Adult Health 3SA Vol 1 Part 2 p. 76-78