A nurse notices redness and itching around intravenous cannula insertion site. What she should suspect?

AIIMS Delhi NO- 2019

Medical & Surgical Nursing

Easy

Appeared in: AIIMS Delhi NO- 2019

Explanation

Phlebitis is the inflammation of a vein, and its hallmark signs include redness (erythema), warmth, pain, and swelling along the course of the vein.
The symptoms of redness and itching directly correspond to the inflammatory response characteristic of phlebitis.
This condition can be caused by mechanical irritation from the catheter, chemical irritation from the medication, or bacterial contamination.
The visual evidence in the provided image, showing a red streak along the vein from the insertion site, is a classic presentation of phlebitis.

Option A: An allergic reaction to the IV fluid would typically cause a systemic reaction, such as generalized hives, shortness of breath, or anaphylaxis, rather than localized redness and itching at the insertion site.
Option B: While an allergic reaction to the cannula material or adhesive dressing can cause localized redness and itching, phlebitis is a more common and specific complication involving inflammation of the vein itself, which matches the symptoms described.
Option C: Infiltration is the leakage of IV fluid into the surrounding subcutaneous tissue. Its key signs are swelling, coolness of the skin, and pallor (blanching), not redness and warmth.

Clinical Relevance

Nursing practice connection: Knowing Identification of complications related to intravenous (IV) therapy helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Prompt identification and management of phlebitis are essential to prevent more serious complications like thrombophlebitis (inflammation with clot formation), infection, and permanent vein damage.
Nurses must perform regular assessments of all IV sites as per hospital protocol, typically every 1-2 hours for critically ill patients and every 4 hours for others.
What if? If the patient also had a fever and purulent drainage from the site, the nurse should suspect a local infection or suppurative phlebitis, which requires more aggressive treatment, including potential antibiotic therapy and culturing of the site.

How to Approach the Question

First, analyze the keywords in the question: 'redness' and 'itching' at an 'IV cannula site'. These are signs of inflammation.
Next, evaluate each option based on the known signs and symptoms of IV complications.
Recall that 'infiltration' is characterized by coolness and swelling, not redness. This eliminates option C.
Consider 'allergic reaction'. A reaction to the fluid is usually systemic, and a reaction to the cannula is possible but phlebitis is a more specific and common diagnosis for vein inflammation. This makes options A and B less likely.
Recognize that 'phlebitis' is the specific term for inflammation of a vein, which perfectly matches the signs of redness and itching (a form of irritation/discomfort).
Therefore, conclude that phlebitis is the most likely diagnosis.

Concept Tested & Keywords

Concept Tested: Identification of complications related to intravenous (IV) therapy.
Stem keywords: intravenous cannula, insertion site, redness, itching
Lead-in keywords: suspect
Clinical cues: The combination of redness and itching points towards an inflammatory process at the IV site.

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E6 Nursing Fundamentals Potter Perry 12e Part 5 p. 74-76

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