Medical Examination | PPD Test

Dear Friend,

Praised be Jesus and Mary!!

Last April 2, I went to DLSHSI for the required medical examination for incoming froshies.

There were many tests that it lasted for almost a whole day. It was very tiring. One of the tests was a PPD skin test.

I was quite frustrated that I did not even have an idea what PPD stands for, while some batchmates seem fully aware of what it was. I joked with my mom and dad who accompanied me, “What was that? PBD? Payors Benefit in case of Death?” They laughed. PBD was one of the riders that we attach to juvenile life insurance policies. (My whole family works in the life insurance industry.) Later, I found that PPD (Purified Protein Derivative) Skin Test is a method to diagnose latent tuberculosis infection.

They injected something on top of our skin and said that we could remove the cotton after ten minutes. We were asked to visit again after three days for the reading of the results.

I hate the feeling of not knowing and not understanding something. I searched for more information in the internet. Here is a link to one of the sources that I found.

This was what my skin looked like for the next three days:


Day 1 and Day 2 images were taken with the same lighting at home. However, I left home early on Day 3 and I forgot to take photo before leaving. The Day 3-a image was in the morning on the way to Cavite, while the Day 3-b was after the reading.

I went back to the school clinic, but I found this sign by the door:


The person there marked the edge of the swollen part and measured it with a ruler. (see Day3-b in the photo above) She was quick; she measured 6mm or 7mm, I think. I asked if it was okay, but she explained that they are not allowed to disclose the result. She said that someone would call us. No one called, though.

Almost three weeks passed and the redness now looks like an old bruise.

I thought I’d write this post, and share especially the photo and the link above, since you might be curious about your own PPD test.

Kristine G. Veneracion

2 thoughts on “Medical Examination | PPD Test

  1. Induration (swelling) of 15 mg/day of prednisone for 1 month or longer, taking TNF-a antagonists)

    An induration of 10 or more millimeters is considered positive in:

    -Recent immigrants (< 5 years) from high-prevalence countries

    -Injection drug users

    -Residents and employees of high-risk congregate settings

    -Mycobacteriology laboratory personnel

    -Persons with clinical conditions that place them at high risk

    -Children < 4 years of age

    – Infants, children, and adolescents exposed to adults in high-risk categories

    An induration of 15 or more millimeters is considered positive in any person, including persons with no known risk factors for TB. However, targeted skin testing programs should only be conducted among high-risk groups.

  2. A lot of what I put in there seems to have been cut out. Maybe it was too long? The weird thing is the part that’s missing starts and stops in mid-sentence. Here’s the important part: An induration (swelling) or less than 10 mm is only positive if you have a medical condition, or take medication that suppresses your immune system. In your case, probably not likely. If the test were positive they probably would have let you know right away. I’ll link the page from the CDC website:

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