Which of the following forms accompanies a toxicology drug screen for legal purposes?
Answer : A
A toxicology drug screen performed for legal, forensic, workplace, or evidentiary purposes must be accompanied by a chain-of-custody form. Chain of custody documents each person who handles the specimen, the date and time of transfer, specimen condition, identification verification, sealing, storage, and delivery. Its purpose is to prove that the specimen belongs to the correct individual and was not substituted, altered, contaminated, or mishandled. A requisition identifies the ordered test and patient/order details, but it does not provide the legal transfer record required for forensic validity. An encounter form supports visit documentation or administrative capture, not specimen evidence control. CMS 1500 is a health insurance claim form and has no role in legal specimen tracking. The phlebotomist must follow strict identification, sealing, labeling, and documentation procedures because any break in custody can invalidate the specimen for legal use. NHA CPT processing content explicitly includes chain-of-custody guidelines when required, including forensic studies and blood alcohol specimens, and special collection requirements for drug screening. Reference topics: Processing Specimens; chain of custody; drug screening; legal specimen documentation.
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Question 2
Which of the following actions should a phlebotomist take to prevent reflux during venipuncture?
Answer : A
To prevent reflux, the patient's arm should be kept in a downward position so the collection tube remains below the puncture site. Reflux occurs when blood or tube additive flows backward from the tube into the patient's vein. Keeping the tube below the venipuncture site and allowing tubes to fill properly reduces this risk. Holding the tube above the puncture site increases the chance of backflow. Removing the tube before it fills can create incorrect blood-to-additive ratios and does not prevent reflux. Inserting the needle bevel down is incorrect technique; venipuncture needles are inserted bevel up to enter the vein smoothly and reduce trauma. Reflux prevention also includes using proper tube position, avoiding excessive movement, not pushing tube contents toward the patient, and releasing the tourniquet appropriately. This is especially important with additive tubes because additive contamination of the patient's circulation, while uncommon, is a preventable safety concern. Reference topics: Routine Blood Collections; reflux prevention; evacuated tube technique; arm positioning; tube handling.
Question 3
Which of the following agencies is responsible for setting guidelines for bloodborne exposure incidents?
Answer : D
The Occupational Safety and Health Administration is responsible for workplace safety regulation, including requirements related to bloodborne pathogen exposure. In phlebotomy, bloodborne exposure incidents include needlesticks, blood splashes, mucous membrane exposure, and contact with non-intact skin. OSHA's Bloodborne Pathogens Standard requires employers to maintain exposure control plans, provide training, use engineering controls such as safety needles and sharps containers, support appropriate PPE, and establish procedures for exposure reporting and follow-up. CMS is primarily linked to Medicare, Medicaid, and healthcare payment/quality oversight, not direct bloodborne exposure incident standards. The FDA regulates medical devices, drugs, biologics, and related safety approvals. CLIA governs laboratory testing quality standards, not occupational blood exposure response. The option wording on the screen says ''Occupational Safety of Health Administration,'' but the correct agency is OSHA: Occupational Safety and Health Administration. NHA CPT safety content includes OSHA, bloodborne pathogens, sharps disposal, biohazards, exposure control protocols, needlestick reporting, and workplace safety regulations. Reference topics: Safety and Compliance; OSHA; Bloodborne Pathogens Standard; exposure control protocols.
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Question 4
A phlebotomist is preparing to collect a CBC and a basic metabolic panel using evacuated tubes. Which of the following tubes should the phlebotomist collect first?
Answer : B
For a CBC and basic metabolic panel, the green-top tube should be collected before the lavender-top tube when following the standard order of draw after sterile/blood culture tubes and coagulation tubes. A basic metabolic panel is commonly collected in a green-top heparin tube or serum tube depending on facility protocol, while a CBC requires a lavender-top EDTA tube. Additive carryover is the key concept. EDTA from a lavender tube can contaminate later specimens and falsely elevate potassium while lowering calcium because EDTA binds calcium. This makes lavender-top collection before chemistry specimens technically unsafe when chemistry testing is also ordered. Gray-top tubes are generally used for glucose or lactate testing and are collected later. Yellow SPS tubes are used for blood cultures and would be collected first only if blood cultures were ordered. The phlebotomist must know order of draw, tube additives, and the clinical consequence of additive contamination. Reference topics: Routine Blood Collections; order of draw; tube additives; CBC; chemistry specimen collection.
Question 5
A phlebotomist should instruct a patient to take which of the following actions when providing a sputum specimen?
Answer : D
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.
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Question 6
Which of the following tests is most likely to require collection in a chilled specimen tube?
Answer : A
Ammonia is most likely to require collection in a chilled specimen tube and rapid transport, depending on facility protocol. Ammonia is unstable and can be affected by delayed processing, temperature, and cellular metabolism after collection. Chilling slows metabolic activity and helps preserve specimen integrity. Total cholesterol is generally a routine chemistry test and does not usually require immediate chilling. Hemoglobin A1c is collected to evaluate long-term glycemic control and is not typically a chilled specimen. Blood cultures require aseptic technique, correct culture bottles, adequate volume, and timely incubation or transport, not chilling. The broader lesson is that special handling requirements are analyte-specific. Some specimens must be chilled, some kept warm, some protected from light, and some delivered immediately. The phlebotomist must review the requisition, laboratory directory, or facility procedure before collection. Improper temperature handling can produce inaccurate results even if the specimen was collected in the correct tube. Reference topics: Special Collections; chilled specimens; ammonia handling; specimen stability; transport requirements.
Question 7
A phlebotomist enters a patient's room and finds the patient motionless and cyanotic. Which of the following actions should the phlebotomist take?
Answer : A
The first action is to assess responsiveness by speaking loudly and directly to the patient, such as asking whether they are okay. A motionless, cyanotic patient may be in respiratory or cardiac arrest, but the phlebotomist must follow the emergency response sequence rather than jumping to airway maneuvers, rescue breaths, or AED use before confirming responsiveness and activating help according to facility protocol. The head-tilt/chin-lift maneuver is an airway-opening step, but it follows initial responsiveness assessment and emergency activation. Rescue breaths are not the first step and are performed only within the appropriate CPR sequence and training level. Applying an AED is appropriate when cardiac arrest is suspected and the emergency response process has been initiated, but the first immediate action from the options is responsiveness assessment. NHA CPT safety content includes recognizing emergencies, initiating first aid, responding to codes, and CPR-related guidelines. Reference topics: Safety and Compliance; emergency recognition; CPR sequence; first aid response.
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