Pinworm exam (eg, cellophane tape prep)
CPT4 code
Name of the Procedure:
Pinworm Exam (eg, Cellophane Tape Prep)
Summary
A Pinworm Exam, often referred to as a Cellophane Tape Prep, is a simple diagnostic test used to detect the presence of pinworm eggs. The test involves pressing a piece of clear tape against the skin around the anus to collect potential pinworm eggs, which are then examined under a microscope.
Purpose
The procedure is designed to diagnose a pinworm infection, which causes itching around the anus and is common among children. The goal is to confirm the diagnosis so that appropriate treatment can be administered to relieve symptoms and prevent the spread of infection.
Indications
- Intense itching around the anal area, especially at night
- Restless sleep or irritability
- Visible worms around the anus or in stools
- Complaints of anal discomfort, particularly in children
Preparation
- No specific preparation like fasting is required.
- The patient or caregiver may need to obtain the testing kit in advance.
- The test is best conducted in the morning before bathing or using the toilet.
Procedure Description
- A clear piece of cellophane tape is provided with a special adhesive side for the test.
- The adhesive side of the tape is gently pressed against the skin around the anus multiple times to collect any pinworm eggs that may be present.
- The tape is then stuck to a glass slide.
- The sample is sent to a laboratory where it will be examined under a microscope for pinworm eggs.
Tools, Equipment, or Technology:
- Cellophane tape
- Glass slides
- Microscope
Anesthesia or Sedation:
- Not applicable.
Duration
The collection process takes just a few minutes. The examination of the sample in the lab may take a few hours to a day.
Setting
The sample collection can be performed at home or in a healthcare provider’s office. The slide is then sent to a diagnostic laboratory for analysis.
Personnel
- Home: Typically performed by a parent or caregiver.
- Laboratory: Laboratory technician reviews the sample under a microscope.
Risks and Complications
- There are no significant risks associated with this procedure.
- Rarely, improper sample collection could lead to inconclusive results.
Benefits
- Non-invasive and simple procedure
- Quick and easy to perform
- Reliable in diagnosing pinworm infections, allowing prompt treatment
Recovery
- No recovery time is needed as the procedure is non-invasive.
- Instructions may be given for follow-up if pinworm eggs are detected.
Alternatives
- Direct visual inspection for pinworms during early morning.
- Stool sample examination, though less commonly used for pinworms.
Pros of Cellophane Tape Prep:
- Highly specific and sensitive for pinworm detection
- Easy to perform
Cons of Alternatives:
- Less accurate
- May miss pinworm eggs
Patient Experience
- The procedure is typically painless.
- May cause slight discomfort during the application of tape, mainly due to the sensitivity of the area.
- Comfort measures include explaining the process to the child to reduce anxiety.