5 Capillary and Special Collections Free Online FlashCards

When is capillary collection useful?

Capillary specimens are useful when only a small volume is needed, such as for selected point-of-care tests, neonatal testing, or certain hematology measurements.

How does careful antisepsis help when collecting blood cultures?

Disinfect the skin with the approved antiseptic and let it dry fully. Disinfect bottle septa as directed, and do not touch the prepared site.

Who determines whether a person is eligible to donate blood?

The blood collection establishment assesses donor eligibility under applicable requirements and its procedures. Phlebotomy staff should not independently determine eligibility or promise that someone qualifies.

How is a clean-catch urine specimen collected?

Clean the area as instructed, begin urinating into the toilet, then collect the midstream portion without touching the inside of the designated container.

Where should an adult fingertip puncture usually be made?

Use the side of the fingertip, commonly the middle or ring finger. Avoid cold, swollen, scarred, infected, or poorly perfused sites.

What is the recommended heel site for an infant capillary sample?

Use the medial or lateral plantar surface of the heel. Avoid the back and center of the heel, and use a depth appropriate to the patient and device.

Why should forceful squeezing be avoided during capillary collection?

Excessive pressure can introduce tissue fluid and contribute to hemolysis or inaccurate results. Collect drops without forceful squeezing.

What is the usual capillary order of draw?

Collect hematology specimens first, chemistry specimens second, and blood-bank specimens last.

Why must blood culture sets and bottle volumes follow the order?

Collect the ordered number of sets and required volume. Too few sets or underfilled bottles can limit interpretation or reduce the chance of detecting infection.

How should collected blood cultures be handled before laboratory processing?

Transport cultures promptly according to laboratory instructions. Do not refrigerate them unless the laboratory specifically directs it.

What should a sputum specimen contain?

Collect material produced by a deep cough, not saliva, in the specified sterile, leakproof container.

What must be verified when collecting a swab specimen?

Use the swab and transport medium specified for the test, collect from the ordered anatomical site, avoid contamination, and place it into the transport system as directed.