Mixed Deck — All NCCT Topics Flashcards

Which communication approach should a phlebotomist use with an anxious patient?

Answer: Speak calmly, explain each step, and acknowledge the patient's feelings

Therapeutic communication — speaking calmly, providing clear explanations, and showing empathy — reduces patient anxiety and improves cooperation.

After applying a tourniquet to a patient's arm, the phlebotomist observes small, non-raised red spots appearing on the skin below the tourniquet. What does this clinical sign indicate?

Answer: The formation of petechiae, suggesting capillary fragility

The appearance of small red spots, or petechiae, after tourniquet application indicates minor hemorrhage from fragile capillaries. This can be a sign of a low platelet count or other coagulation issues, and the phlebotomist should be prepared to apply extra pressure to the site after the draw to ensure bleeding stops.

A specimen for erythrocyte sedimentation rate (ESR) should be collected in which tube?

Answer: Lavender (EDTA) or black (sodium citrate for ESR)

ESR can be performed on blood collected in a lavender EDTA tube or a specialized black-top tube containing sodium citrate specifically formulated for sedimentation rate testing.

After a successful blood draw, a patient asks the phlebotomist, "What do my cholesterol levels look like? Are they high?" What is the most ethical and professional response?

Answer: "I am not qualified to interpret test results, but you can discuss them with your doctor once they are available."

It is outside the phlebotomist's scope of practice to interpret, discuss, or provide any indication of test results to a patient. Doing so could be considered practicing medicine without a license. The only appropriate action is to refer the patient to their physician for all result-related questions.

Which of the following specimens is collected using a cold agglutinin test procedure?

Answer: Specimen kept at 37 degrees C during transport

Cold agglutinin specimens must be kept warm at 37 degrees C during collection and transport to prevent cold-reacting antibodies from attaching to red blood cells at lower temperatures.

Which of the following is an example of a preanalytical error?

Answer: Drawing blood from a site above an active IV line

Drawing blood from above an IV line is a preanalytical error because it occurs before laboratory testing and contaminates the specimen with IV fluid.

Which of the following actions is a key component of obtaining informed consent before performing a venipuncture?

Answer: Explaining the procedure, its purpose, and potential risks like bruising or fainting.

Informed consent involves ensuring the patient understands the procedure they are about to undergo. This includes explaining what will happen, the reason for the test, and any common, potential risks or complications, such as pain, bruising, or fainting. This allows the patient to make an educated decision and grant permission for the blood draw.

How many times should an evacuated tube with anticoagulant be inverted after collection?

Answer: 8-10 times

Anticoagulant tubes should be gently inverted 8-10 times immediately after collection to ensure thorough mixing of blood with the anticoagulant.

What gauge needle is most commonly used for routine adult venipuncture?

Answer: 21-gauge

A 21-gauge needle is the standard for routine adult venipuncture, providing adequate blood flow while minimizing patient discomfort and hemolysis.

What term describes being free from pollution or germs?

Answer: Asepsis.

Asepsis refers to the absence of disease-causing microorganisms, such as bacteria, viruses, and fungi. It is a fundamental principle in healthcare, involving practices and procedures designed to prevent contamination and infection, particularly during medical procedures and in sterile environments. Maintaining asepsis is crucial for patient safety and preventing healthcare-associated infections.

Which chamber of the heart pumps oxygenated blood to the body?

Answer: Left ventricle

The left ventricle pumps oxygenated blood through the aorta to supply the systemic circulation of the body.

What does the abbreviation 'STAT' mean in a laboratory order?

Answer: Immediately/urgent

STAT (from Latin 'statim') means immediately, indicating an urgent test that must be collected and processed without delay.

What is the correct response if a phlebotomist cannot identify a patient using two identifiers?

Answer: Do not collect the specimen until proper identification is confirmed

Collecting a specimen without two-identifier verification risks a patient identification error; the phlebotomist must resolve the identification issue before proceeding.

What type of collection container is typically used for neonatal bilirubin testing via capillary puncture?

Answer: Amber-wrapped capillary tube

Bilirubin is light-sensitive and must be protected from light during and after collection, so amber-wrapped or foil-covered capillary tubes are used.

According to CLSI guidelines, which of the following represents the correct order of draw when collecting multiple tubes?

Answer: Blood culture, Coagulation tube, Serum tube, EDTA tube

The Clinical and Laboratory Standards Institute (CLSI) recommends a specific order of draw to prevent cross-contamination of additives between tubes. The correct sequence starts with blood culture tubes (sterile), followed by coagulation tubes (e.g., light blue top), then serum tubes (with or without clot activator/gel), and then tubes with other additives like heparin (green) and EDTA (lavender).

Which type of precautions should be followed when drawing blood from ALL patients regardless of diagnosis?

Answer: Standard precautions

Standard precautions apply to all patients regardless of known or suspected infection status, treating all blood and body fluids as potentially infectious.

What is the primary purpose of the NCCT certification for phlebotomy technicians?

Answer: To validate competency in phlebotomy knowledge and skills through a national credential

NCCT certification validates that a phlebotomy technician has demonstrated competency in the knowledge and skills required for safe and effective blood collection.

Which vein is the preferred first choice for routine venipuncture in the antecubital fossa?

Answer: Median cubital vein

The median cubital vein is the preferred first choice because it is typically the largest, most anchored, and least painful vein in the antecubital area, with fewer nearby nerves.

Which of the following best describes the chain of custody as it applies to POCT?

Answer: The documentation trail ensuring patient specimens and results are traceable to the correct patient

Chain of custody in POCT refers to the documented accountability trail linking the specimen and result to the correct patient throughout the testing process.

A phlebotomist arrives to draw blood from a sleeping patient. What is the correct approach?

Answer: Gently wake the patient and verify their identity before drawing

The patient must be gently awakened and their identity verified using two identifiers before any blood draw.