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| Section | Objectives |
|---|---|
| Specimen Collection | - Venipuncture techniques - Capillary puncture procedures - Order of draw and tube handling |
| Patient Preparation | - Patient identification and communication - Site selection and preparation - Explaining procedures and obtaining consent |
| Professional Practice | - Ethics and patient confidentiality (HIPAA) - Communication and professionalism |
| Specimen Processing and Handling | - Labeling and documentation - Specimen transport and storage - Quality control and rejection criteria |
| Safety and Compliance | - OSHA standards and safety protocols - Needlestick prevention and biohazard disposal - Infection control and PPE usage |
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NEW QUESTION # 24
Which of the following is the minimum amount of time required to perform vigorous handwashing according to standard precaution guidelines?
Answer: C
Explanation:
The minimum time for vigorous handwashing is 20 seconds. Proper handwashing requires wetting the hands, applying soap, rubbing all surfaces vigorously, cleaning between fingers and under nails, rinsing, and drying with a clean towel or approved drying method. Ten seconds is too short to reliably remove transient microorganisms. Two or three minutes is excessive for routine handwashing under standard precautions and is more consistent with extended surgical scrub concepts, not ordinary clinical hand hygiene before and after patient contact. In phlebotomy, hand hygiene is required before patient contact, after glove removal, after contact with blood or body fluids, after touching contaminated surfaces, and whenever hands are visibly soiled. Gloves do not replace hand hygiene; they are an additional barrier. Correct hand hygiene reduces healthcare-associated infection risk and protects both the patient and the phlebotomist. Reference topics: Safety and Compliance; standard precautions; hand hygiene; infection prevention; PPE. CDC guidance states that healthcare personnel should wash hands with soap and water for at least 20 seconds in indicated situations.
NEW QUESTION # 25
Which of the following actions can cause hemolysis during venipuncture?
Answer: C
Explanation:
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.
NEW QUESTION # 26
A patient starts convulsing during a blood collection. Which of the following actions should the phlebotomist take?
Answer: C
Explanation:
If a patient begins convulsing during blood collection, the phlebotomist's priority is patient safety and prevention of injury. From the choices provided, allowing the patient's limbs to move freely is correct because the phlebotomist should not restrain the patient during a seizure. Restraining can cause musculoskeletal injury and does not stop the seizure. In actual procedure, the phlebotomist should immediately stop the draw when safe, remove the tourniquet and needle, activate the safety device, call for help, protect the patient from surrounding hazards, and follow emergency protocol. Continuing the collection is unsafe because seizure activity can cause needle movement, vein trauma, needlestick exposure, and specimen compromise. A cold compress is more relevant to swelling, bruising, or selected local complications, not active convulsions. Orange juice may be appropriate only for a conscious patient with suspected hypoglycemia who can swallow safely; it is unsafe during convulsions. The NHA CPT outline includes recognizing seizures and other complications during routine blood collection, discontinuing the draw if needed, emergency response, and first aid. Reference topics: Safety and Compliance; Routine Blood Collections; seizure response; emergency care during collection.
NEW QUESTION # 27
Which of the following is the maximum allowed time for a tourniquet application before possibly affecting test results?
Answer: A
Explanation:
The maximum recommended tourniquet application time before results may be affected is 60 seconds. A tourniquet is applied to increase venous filling and make the vein easier to locate and access, but prolonged application causes venous stasis and hemoconcentration. When blood remains trapped below the tourniquet too long, fluid shifts from the vascular space into surrounding tissue, concentrating cells, proteins, and protein-bound analytes. This can falsely elevate results such as potassium, calcium, proteins, and other chemistry values. It can also increase patient discomfort and make the collection more difficult. Thirty and forty-five seconds are acceptable but are not the maximum allowed time. Ninety seconds is too long and increases the risk of altered test values. Correct practice is to apply the tourniquet only long enough to select the site and establish blood flow, then release it promptly, especially before removing the needle. Reference topics: Routine Blood Collections; tourniquet application; hemoconcentration; venipuncture preanalytical variables.
NEW QUESTION # 28
Which of the following PPE should a phlebotomist wear when there is a risk of blood splatter during collection?
Answer: B
Explanation:
When there is a risk of blood splatter, the phlebotomist should wear eye and face protection, such as a face shield or goggles with a mask. Standard gloves protect the hands but do not protect the mucous membranes of the eyes, nose, and mouth. Sterile gloves are not routinely required for standard venipuncture; clean gloves are typically used unless a sterile procedure is specified. Shoe covers are not the primary protection for facial splash exposure. An N95 respirator protects against airborne particles but does not replace splash protection unless combined with appropriate eye and face protection when needed. The correct PPE is based on anticipated exposure. A routine venipuncture may require gloves only, but procedures with splash risk require additional barriers. The phlebotomist must evaluate the procedure, patient behavior, specimen type, and environment before collection. PPE use also includes proper donning, removal, disposal, and hand hygiene after glove removal. Reference topics: Safety and Compliance; PPE selection; standard precautions; splash exposure; mucous membrane protection.
NEW QUESTION # 29
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