NORCET 3 - 2022 (Shif…: What is the absolute Contraindication of liver biopsy in Children?

NORCET 3 - 2022 (Shift-1)

Child Health Nursing (Pediatrics)

Easy

Appeared in: NORCET 3 - 2022 (Shift-1)

Explanation

Coagulopathy, an uncorrectable bleeding disorder, is considered an absolute contraindication for a percutaneous liver biopsy due to the high risk of severe hemorrhage.
The liver is a highly vascular organ, and puncturing it in a patient who cannot form blood clots effectively can lead to life-threatening internal bleeding.
Clinical practice guidelines specify safety thresholds for coagulation parameters, such as a platelet count greater than 60,000/μL and an International Normalized Ratio (INR) of 1.5 or less, before proceeding.
If these coagulation parameters are not met and cannot be corrected, the percutaneous procedure is contraindicated.

Option B: The presence of a liver tumor is generally an indication for a biopsy, not a contraindication. The biopsy is necessary to diagnose the type of tumor.
Option C: Pneumothorax (collapsed lung) is a potential complication of a liver biopsy, not a pre-existing condition that prevents the procedure. It occurs if the needle inadvertently punctures the pleura and lung.
Option D: Bleeding is the primary complication or adverse event that the contraindication (coagulopathy) aims to prevent. It is an outcome, not the pre-existing condition.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Contraindications for Liver Biopsy as background academic context rather than a clinical decision trigger.
A key nursing responsibility is to verify pre-procedure lab results, specifically platelet count and INR, and immediately report any values outside the safe range to the healthcare provider.
Post-procedure, nurses must diligently monitor for signs of hemorrhage, such as tachycardia, hypotension, pallor, increasing abdominal pain or girth, and right shoulder tip pain (referred pain from diaphragmatic irritation).
What if? If a patient has severe ascites along with coagulopathy, the risk of complications with a percutaneous biopsy increases further. This strengthens the case for using the transjugular approach, which avoids both puncturing the liver capsule and traversing the fluid-filled peritoneal cavity.

How to Approach the Question

First, analyze the question to identify the key terms: 'absolute contraindication' and 'liver biopsy'. 'Absolute' means the procedure is strictly forbidden due to life-threatening risk.
Next, understand the nature of a liver biopsy: it's an invasive procedure that punctures a vascular organ, so the biggest risk is bleeding.
Evaluate each option in the context of this risk.
Differentiate between a contraindication (a reason not to do the procedure), an indication (a reason to do the procedure), and a complication (a potential adverse outcome).
Coagulopathy is a condition that prevents blood clotting, directly increasing the primary risk of the procedure (bleeding), making it the absolute contraindication.
Recognize that 'Tumour' is often an indication, while 'Pneumothorax' and 'Bleeding' are potential complications.

Concept Tested & Keywords

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E6 Ghai Essential Pediatrics(pp 26-904 of 913) p. 785-787

E6 Medicine Davidson Principles Practice 24e p. 875-877