人們相信需要一個標準化的、多國的、令人信服的考試來驗證個人在 NHA上技能的等級。同時，這個考試必須有利於公司雇用 NHA 方面專業人才。為了實現這壹目的，NHA 專家機構聯合多方力量設計和完善了 Phlebotomy-Technician 認證考試。NHA 專家機構通過全球的發展使之成為一個倍受公認和廣泛認可的 Phlebotomy-Technician 認證考試體系。用戶應該可以自由選擇，在認證 NHA 最高級工程師這壹關鍵領域不應固定於一個廠商。
| Section | Objectives |
|---|---|
| Topic 1: Safety and Compliance | - Infection control and PPE usage - OSHA standards and safety protocols - Needlestick prevention and biohazard disposal |
| Topic 2: Specimen Collection | - Capillary puncture procedures - Order of draw and tube handling - Venipuncture techniques |
| Topic 3: Specimen Processing and Handling | - Quality control and rejection criteria - Labeling and documentation - Specimen transport and storage |
| Topic 4: Patient Preparation | - Patient identification and communication - Site selection and preparation - Explaining procedures and obtaining consent |
| Topic 5: Professional Practice | - Communication and professionalism - Ethics and patient confidentiality (HIPAA) |
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問題 #59
A phlebotomist is collecting from a patient under droplet precautions. Which of the following PPE is most directly indicated?
答案：A
解題說明：
A surgical mask is most directly indicated for droplet precautions. Droplet precautions are used for organisms transmitted through respiratory droplets generated by coughing, sneezing, or talking. The mask helps protect the phlebotomist's nose and mouth from exposure at close range. A lead apron is used for radiation protection and has no role in droplet isolation. A sterile gown alone does not protect the respiratory mucosa and is not the primary droplet precaution. Shoe covers alone do not address droplet transmission. Depending on facility signage and procedure risk, additional PPE such as eye protection, gown, or gloves may be required, but from the options given, a surgical mask is the key droplet precaution. The phlebotomist should check isolation signs before entering, bring only necessary supplies, perform hand hygiene, wear PPE correctly, and remove PPE safely before leaving. This item tests transmission-based precaution matching: contact, droplet, airborne, and protective isolation are not interchangeable. Reference topics: Safety and Compliance; droplet precautions; PPE; isolation signage; infection control.
問題 #60
Which of the following actions can cause hemolysis during venipuncture?
答案：A
解題說明：
Using a needle with a gauge that is too small can cause hemolysis. A small-bore needle can create excessive mechanical force as blood passes through the lumen, damaging red blood cells and releasing intracellular contents into serum or plasma. Hemolysis can alter test results, especially potassium, lactate dehydrogenase, and other analytes affected by red-cell rupture. Allowing alcohol to dry before puncture is correct practice because it reduces stinging and helps prevent contamination. Releasing the tourniquet before needle removal is also correct because it reduces pressure and supports safer needle withdrawal. Mixing additive tubes by gentle inversion is required; the danger occurs when tubes are shaken vigorously. Additional hemolysis causes include probing, drawing through a hematoma, forcing blood from a syringe into a tube, rough transport, incorrect centrifugation, and delayed processing. A phlebotomist must choose equipment appropriate to the patient's vein while maintaining specimen quality. Reference topics: Routine Blood Collections; hemolysis; needle gauge selection; specimen integrity; preanalytical error.
問題 #61
Which of the following blood components is primarily responsible for oxygen transport?
答案：A
解題說明：
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.
問題 #62
Which of the following is required for a midstream clean-catch urine specimen?
答案：B
解題說明：
A midstream clean-catch urine specimen requires use of a sterile specimen container because the purpose is to reduce contamination from skin flora, genital secretions, and environmental organisms. The patient is instructed to clean the area using the facility-provided cleansing materials, begin voiding, then collect the midstream portion without touching the inside of the container or lid. Filling the container to the lid is not required and can create leakage, contamination, or transport problems. Labeling the lid is incorrect because the label must be placed on the specimen container itself; lids can be separated or switched. Cleansing with alcohol wipes is also not the standard answer because urine collection kits typically use antiseptic cleansing towelettes designed for clean-catch collection, not alcohol as the defining requirement. The phlebotomist must provide clear patient instructions and verify that the specimen is properly labeled and handled. The NHA CPT outline includes non-blood specimen collection, patient instructions for urine specimens, specimen handling, and processing requirements. Reference topics: Special Collections; non-blood specimen collection; urine specimen instructions; specimen integrity.
問題 #63
A phlebotomist should immediately report which of the following to a supervisor?
答案：C
解題說明：
A needlestick injury must be reported immediately to a supervisor because it is an occupational exposure incident involving potential transmission of bloodborne pathogens. Immediate reporting triggers the facility's exposure-control plan, which may include wound cleansing, documentation, source-patient evaluation when permitted, employee health assessment, post-exposure prophylaxis consideration, and required follow-up testing. Delayed reporting can compromise medical management and regulatory documentation. Outdated blood collection supplies should be removed from use and handled according to inventory or quality-control policy, but they do not carry the same immediate occupational exposure urgency. An allergic reaction must be managed clinically and reported according to severity and facility procedure, but the most direct supervisor-reporting requirement in this item is the needlestick injury. Patient noncompliance with dietary requirements should be documented or communicated as required because it may affect test validity, but it is not an occupational exposure emergency. NHA CPT safety content specifically includes following exposure control plans for needle sticks, notification requirements, needle stick protocols, bloodborne pathogen standards, and reporting requirements. Reference topics: Safety and Compliance; needlestick injury; exposure control protocols; reporting requirements.
問題 #64
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