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| Section | Objectives |
|---|---|
| Topic 1: Patient Preparation | - Explaining procedures and obtaining consent - Patient identification and communication - Site selection and preparation |
| Topic 2: Professional Practice | - Ethics and patient confidentiality (HIPAA) - Communication and professionalism |
| Topic 3: Specimen Collection | - Order of draw and tube handling - Venipuncture techniques - Capillary puncture procedures |
| Topic 4: Specimen Processing and Handling | - Labeling and documentation - Specimen transport and storage - Quality control and rejection criteria |
| Topic 5: Safety and Compliance | - OSHA standards and safety protocols - Infection control and PPE usage - Needlestick prevention and biohazard disposal |
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質問 # 48
From which of the following sites should a phlebotomist take a capillary collection from a 3-year-old child?
正解：B
解説：
For a 3-year-old child, the correct capillary collection site is the middle finger. Finger puncture is appropriate for older infants and children when the finger pad is sufficiently developed, commonly using the middle or ring finger on the palmar surface. Heel puncture is primarily used for infants, especially newborns, because the recommended medial or lateral plantar heel area provides a safer capillary site before the fingers are large enough. The antecubital fossa is used for venipuncture, not capillary puncture. The vastus lateralis is an intramuscular injection site, not a blood collection site. Proper capillary technique requires warming if needed, cleaning and drying the site, using an appropriate-depth lancet, wiping away the first drop when required, avoiding excessive squeezing, and collecting in the correct order. In a child, site choice must protect bone, nerves, and tissue while obtaining an adequate specimen. Reference topics: Routine Blood Collections; dermal puncture; pediatric capillary collection; site selection; microcollection safety. NHA CPT content includes dermal puncture procedures and capillary collection site selection.
質問 # 49
Which of the following tests is most likely to require collection in a chilled specimen tube?
正解：B
解説：
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.
質問 # 50
A patient calls about their laboratory results, which the phlebotomist has just retrieved from the office fax machine. Which of the following actions should the phlebotomist take?
正解：A
解説：
The phlebotomist should give the report to the requesting provider to review and notify the patient. Laboratory results are protected health information and often require clinical interpretation. A phlebotomist should not independently review, interpret, or communicate diagnostic results unless facility policy specifically authorizes a defined action. Telling the patient the results directly can create legal, privacy, and clinical risks, especially if the result is abnormal or requires medical explanation. Asking a laboratory supervisor to interpret and report the results is also inappropriate unless that person is the authorized provider or designated reporting professional. Telling the patient to pick up results may violate release-of-information procedures and still bypass provider review. The safe workflow is to route the report to the ordering provider or authorized clinical team for interpretation, documentation, and patient notification. Reference topics: Processing Specimens; communication of results; confidentiality; HIPAA; scope of practice; postanalytical handling. NHA CPT competencies include legal responsibilities, patient confidentiality, documentation, and result communication workflows.
質問 # 51
Which of the following veins is usually the last choice for antecubital venipuncture?
正解：C
解説：
The basilic vein is usually the last choice for antecubital venipuncture. The median cubital vein is preferred because it is typically large, well anchored, superficial, and less likely to roll. The cephalic vein is commonly the second choice when the median cubital is unavailable. The basilic vein is used cautiously because it lies closer to the brachial artery and median nerve, creating greater risk if the needle is inserted too deeply or inaccurately. The dorsal metacarpal veins are hand veins, not antecubital veins, and may be used when antecubital access is unavailable, often with a butterfly needle and shallow angle. This question tests anatomical risk control. A phlebotomist must not simply pick the most visible vein; they must evaluate vein safety, depth, direction, resilience, patient history, and contraindications such as IV sites, edema, burns, scars, hematomas, fistulas, and mastectomy restrictions. Proper site selection reduces pain, nerve injury, arterial puncture, hematoma, and recollection risk. Reference topics: Routine Blood Collections; antecubital anatomy; vein selection; basilic vein risk.
質問 # 52
Which of the following questions should a phlebotomist ask to verify fasting status?
正解：A
解説：
The phlebotomist should ask, "When was the last time you had anything to eat or drink other than water?" This question directly verifies fasting status and avoids a vague yes/no answer. Patients may misunderstand fasting and think coffee, juice, gum, candy, or a small snack does not count. Asking about medication is important for some tests, but it does not verify fasting. Asking why the provider ordered the test is outside the phlebotomist's interpretive role and may lead to unauthorized clinical discussion. Asking whether the patient has had the test before does not confirm current preparation. Accurate fasting verification is part of patient preparation and preanalytical quality control. If the patient has not fasted as required, the phlebotomist should follow facility policy, notify appropriate personnel, document noncompliance if collection proceeds, or reschedule if instructed. Poor preparation can produce misleading chemistry results and unnecessary repeat testing. Reference topics: Patient Preparation; fasting verification; patient interview; basal-state requirements; preanalytical variables.
質問 # 53
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