In which of the following locations should a phlebotomist directly dispose of a contaminated microscope slide?
A: Specimen bag
B: Biohazard bag
C: Red sharps container
D: Medical waste container
The Correct Answer is C
Choice A reason:
A specimen bag is typically used for transporting specimens from the collection site to the laboratory. It is not designed for the disposal of contaminated items such as microscope slides. These bags are not puncture-resistant and do not provide the necessary protection against sharps injuries or contamination.
Choice B reason:
A biohazard bag is used for disposing of items that have been contaminated with potentially infectious materials. While it is suitable for materials like gloves, tissues, or any other items that do not have sharp edges, it is not the appropriate choice for glass slides, which can puncture the bag and pose a risk to handlers.
Choice C reason:
A red sharps container is specifically designed for the disposal of sharps waste, which includes any device that can puncture or cut skin, such as needles, syringes, lancets, and contaminated glass such as microscope slides. These containers are rigid, puncture-resistant, leak-proof, and usually marked with a biohazard symbol, making them the correct choice for disposing of contaminated microscope slides.
Choice D reason:
A medical waste container is a broad term that can refer to various types of containers used for medical waste. However, not all medical waste containers are suitable for sharps disposal. Unless the medical waste container is designed like a red sharps container, it may not be safe for disposing of glass slides.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason:
Holding the two slides at a 90-degree angle is not the correct technique for performing a blood smear. This angle is too steep and would not allow the blood to spread thinly across the slide, which is necessary for creating a quality smear that can be examined under a microscope.
Choice B reason:
Allowing the blood drop to clot slightly before performing the smear is not advisable. Clotting can interfere with the spread of the blood and the formation of a monolayer, which is essential for accurate microscopic examination. The blood should be fresh and anticoagulated to prevent clotting.
Choice C reason:
Holding the slides at a 30-degree angle is the correct technique for performing a blood smear. This angle allows the spreader slide to push the blood drop smoothly across the patient slide, creating a thin, even layer of blood that is ideal for microscopic analysis. The angle, speed, and pressure must be consistent to achieve a quality smear.
Choice D reason:
Allowing the blood drop to clot completely before performing the smear would make it impossible to create a smear. Clotted blood cannot be spread into a thin layer, which is necessary for microscopic examination of the blood cells.
Correct Answer is A
Explanation
Choice A Reason:
SST, or Serum Separator Tube, contains a gel at the bottom to separate the blood from the serum upon centrifugation. It does not indicate plasma; rather, it is used to collect serum after the blood has clotted. The SST allows for the blood to clot and the serum to be separated for various tests that require serum instead of plasma.
Choice B Reason:
Sodium fluoride is a common additive in collection tubes that serves as a glycolysis inhibitor. It preserves glucose levels and is not specifically indicative of serum. However, it is often used in grey-top tubes, which are typically used for glucose testing and may contain plasma, not serum.
Choice C Reason:
Sodium citrate is an anticoagulant that binds calcium in the blood, preventing clotting. Tubes with sodium citrate are used to collect plasma for coagulation studies, not serum. Therefore, this statement is incorrect as sodium citrate indicates plasma, not serum.
Choice D Reason:
EDTA, or Ethylenediaminetetraacetic acid, is an anticoagulant that binds calcium ions, preventing blood from clotting. Tubes with EDTA are used for collecting plasma because they prevent clotting and allow for the separation of plasma from the blood cells upon centrifugation. This is the correct choice as EDTA indicates plasma.
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