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| Section | Objectives |
|---|---|
| Topic 1: Specimen Collection | - Venipuncture techniques - Capillary puncture procedures - Order of draw and tube handling |
| Topic 2: Specimen Processing and Handling | - Labeling and documentation - Quality control and rejection criteria - Specimen transport and storage |
| Topic 3: Professional Practice | - Communication and professionalism - Ethics and patient confidentiality (HIPAA) |
| Topic 4: Safety and Compliance | - Infection control and PPE usage - OSHA standards and safety protocols - Needlestick prevention and biohazard disposal |
| Topic 5: Patient Preparation | - Explaining procedures and obtaining consent - Patient identification and communication - Site selection and preparation |
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NEW QUESTION # 32
A phlebotomist centrifuges a serum specimen before it has fully clotted. Which of the following is most likely to occur?
Answer: D
Explanation:
If a serum specimen is centrifuged before it has fully clotted, fibrin strands can form in the serum. These strands can interfere with testing instruments, cause sample aspiration problems, and lead to inaccurate results or specimen rejection. Serum specimens must be allowed to clot for the required time before centrifugation. Centrifugation does not increase specimen volume, neutralize additives, or sterilize blood. Blood specimens remain potentially infectious regardless of processing. This question tests the difference between serum and plasma. Serum is the liquid portion after clotting; plasma is the liquid portion of anticoagulated blood. If the phlebotomist rushes serum processing, the specimen may look separated but still contain fibrin. The correct workflow includes observing required clot time, balancing centrifuge tubes, using the correct speed and duration, and removing specimens promptly after centrifugation when required. Speed is not quality; specimen integrity is quality. Reference topics: Processing Specimens; clotting time; serum processing; centrifugation; fibrin formation.
NEW QUESTION # 33
From which of the following sites should a phlebotomist take a capillary collection from a 3-year-old child?
Answer: B
NEW QUESTION # 34
A phlebotomist should instruct a patient to take which of the following actions when providing a sputum specimen?
Answer: D
Explanation:
For a sputum specimen, the patient should take a deep breath and then expectorate material from the lower respiratory tract into the appropriate container. Sputum is not saliva; it must come from the lungs or bronchi after a deep cough. The phlebotomist's role is to provide clear collection instructions, confirm the correct container, reduce contamination, and ensure the specimen is labeled and transported according to facility procedure. Option A describes stool collection, not sputum collection. Option B describes the start of a 24-hour urine collection, where the first void is discarded and subsequent urine is saved. Option C describes a buccal swab or oral specimen procedure and is not appropriate for sputum. "Aggressively" swabbing the cheek could cause discomfort or trauma and still would not produce a respiratory specimen. A valid sputum specimen is clinically useful for respiratory infection testing because it contains secretions from the affected airway. NHA CPT competencies include non-blood specimen collection, patient instructions, specimen identification, and maintaining specimen integrity. Reference topics: Special Collections; non-blood specimens; patient instructions; specimen integrity.
NEW QUESTION # 35
Which of the following blood components is primarily responsible for oxygen transport?
Answer: B
Explanation:
Erythrocytes are primarily responsible for oxygen transport. They contain hemoglobin, the iron-containing protein that binds oxygen in the lungs and releases it to tissues. Platelets are involved in hemostasis and clot formation, not oxygen transport. Leukocytes are white blood cells that support immune defense. Plasma proteins perform functions such as maintaining oncotic pressure, transporting substances, and supporting clotting through proteins such as fibrinogen, but they are not the primary oxygen carriers. This foundational knowledge matters because phlebotomy technicians work with specimens used to evaluate red blood cell count, hemoglobin, hematocrit, indices, anemia, blood loss, and hemolysis. If a specimen is hemolyzed, red blood cells rupture and release intracellular contents, which can alter laboratory values. Understanding blood components helps the technician connect collection technique to specimen integrity. For example, rough handling, excessive suction, improper needle size, or vigorous shaking can damage erythrocytes and compromise results. Reference topics: Phlebotomy Fundamentals; blood components; erythrocytes; hemoglobin; CBC testing.
NEW QUESTION # 36
OSHA requires employers to provide which of the following to employees who are at risk for bloodborne pathogen exposure?
Answer: D
Explanation:
OSHA requires employers to offer the hepatitis B vaccine to employees who have occupational exposure risk to bloodborne pathogens. Phlebotomists routinely handle blood, contaminated needles, sharps, and potentially infectious materials, so they fall into the category of workers who require bloodborne pathogen protection under workplace safety standards. Hepatitis B is a bloodborne viral infection that can be transmitted through needlestick injuries, mucous membrane exposure, or contact with contaminated blood. The vaccine is an important preventive measure and must be offered according to employer exposure-control procedures. Medical insurance and life insurance are employee benefit issues, not OSHA bloodborne-pathogen requirements. Phenylketonuria screening is a newborn metabolic screening test and has no connection to employee exposure prevention. In practice, the phlebotomist must also follow standard precautions, use PPE, activate safety devices, dispose of sharps immediately, report exposures, and comply with the facility exposure-control plan. Reference topics: Safety and Compliance; OSHA Bloodborne Pathogens Standard; hepatitis B vaccination; occupational exposure; needlestick prevention.
NEW QUESTION # 37
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