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Difficulty: HardReduction of Risk Potential

A nurse is monitoring a 58-year-old client who returned to the medical-surgical unit one hour ago following a percutaneous left renal biopsy. Which of the following assessment findings indicates an impending physiological complication and requires the most immediate risk mitigation action by the nurse?

  1. The client's blood pressure changes from 142/86 mm Hg to 128/96 mm Hg, and the heart rate increases from 74 to 98 beats/min.Answer
  2. B
    The client reports a localized, dull aching pain at the biopsy site rated as a 3 on a 0-to-10 pain scale.
  3. C
    The client voids 150 mL of urine that has a light pink tint without any visible blood clots.
  4. D
    The client is maintaining strict bed rest in a supine position with a small rolled towel securely placed under the left flank.

Answer

The assessment finding that requires immediate action is the blood pressure change to 128/96 mm Hg coupled with the heart rate increase to 98 beats/min.
The correct answer identifies the early, compensatory signs of hemorrhagic shock. Following a highly vascular procedure like a percutaneous renal biopsy, occult retroperitoneal bleeding is a major risk. A narrowing pulse pressure (the difference between systolic and diastolic pressure dropping from 56 to 32 mm Hg) coupled with mild tachycardia indicates that the client's body is actively vasoconstricting to maintain cardiac output in the face of fluid volume loss. This requires immediate provider notification and intervention.

Step-by-Step Solution

1
Calculate and analyze the client's vital sign trends from baseline to current status.
The pulse pressure (Psystolic−PdiastolicP_{systolic} - P_{diastolic}) narrowed significantly. Baseline was 142−86=56142 - 86 = 56 mm Hg; the current reading is 128−96=32128 - 96 = 32 mm Hg. The heart rate simultaneously increased.
Identifying subtle deviations in hemodynamic parameters is critical for the early detection of internal bleeding before profound hypotension occurs.
2
Correlate the vital sign changes with the specific anatomical risks of a percutaneous renal biopsy.
The kidney is a highly vascular organ located in the retroperitoneal space. Bleeding in this area rarely presents with immediate external signs, making vital sign trends the primary objective indicator.
Retroperitoneal hemorrhage is the most life-threatening acute complication of this procedure, requiring rapid recognition to reduce the risk of severe shock.
3
Evaluate the remaining assessment findings to determine if they are expected post-procedure outcomes.
Mild pain (3/10) and slightly pink-tinged urine are expected findings resulting from localized tissue trauma. The supine position with a flank roll is a required prophylactic measure, not an adverse finding.
Differentiating the expected clinical trajectory from true physiological decompensation ensures the nurse prioritizes actions that save lives.

Key Concept

Early recognition of hemorrhagic shock through vital sign trend analysis, specifically narrowing pulse pressure and tachycardia, to reduce the risk of severe post-procedure complications.
Estimated Time:1m 30s
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Reduction of Risk Potential

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