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NurseDive Free Nursing Practice Question
Which of the following is the first step a phlebotomist should take to prevent the spread of infection?
A. Wearing gloves for any patient contact
Wearing gloves is an important step in preventing the spread of infection, but it is not the first step. Gloves provide a barrier between the phlebotomist's hands and the patient, which can help prevent the transmission of pathogens. However, gloves can still become contaminated, and if hand hygiene is not performed before donning gloves, pathogens can be transmitted when gloves are changed or removed.
B. Washing hands with antimicrobial soap and water
Hand hygiene is widely recognized as the single most important practice in preventing the spread of infections. It is the first line of defense against the transmission of infectious agents. Washing hands with antimicrobial soap and water mechanically removes pathogens, and the antimicrobial agents in the soap can kill or inhibit the growth of microorganisms. This step is crucial before any patient contact, especially before invasive procedures like venipuncture.
C. Applying antiseptic to the puncture sites prior to venipuncture
Applying antiseptic to the puncture sites prior to venipuncture is a critical step in the prevention of infection at the site of the blood draw. This practice is essential for eliminating skin flora that could potentially enter the bloodstream during venipuncture. However, this is not the first step, as effective hand hygiene should precede any patient contact or procedure.
D. Decontaminating the equipment before use
Decontaminating equipment before use is a necessary step to ensure that no infectious agents are transmitted via medical instruments. This includes cleaning and sterilizing equipment that comes into direct contact with the patient. While this is a vital part of infection control, it follows hand hygiene in the sequence of steps a phlebotomist should take.
This question is an excerpt from Nurse Dive's nursing test bank - Phlebotomy Certification Proctored Exam 130. Take the full exam now
Full Explanation
Choice A reason:
Wearing gloves is an important step in preventing the spread of infection, but it is not the first step. Gloves provide a barrier between the phlebotomist's hands and the patient, which can help prevent the transmission of pathogens. However, gloves can still become contaminated, and if hand hygiene is not performed before donning gloves, pathogens can be transmitted when gloves are changed or removed.
Choice B reason:
Hand hygiene is widely recognized as the single most important practice in preventing the spread of infections. It is the first line of defense against the transmission of infectious agents. Washing hands with antimicrobial soap and water mechanically removes pathogens, and the antimicrobial agents in the soap can kill or inhibit the growth of microorganisms. This step is crucial before any patient contact, especially before invasive procedures like venipuncture.
Choice C reason:
Applying antiseptic to the puncture sites prior to venipuncture is a critical step in the prevention of infection at the site of the blood draw. This practice is essential for eliminating skin flora that could potentially enter the bloodstream during venipuncture. However, this is not the first step, as effective hand hygiene should precede any patient contact or procedure.
Choice D reason:
Decontaminating equipment before use is a necessary step to ensure that no infectious agents are transmitted via medical instruments. This includes cleaning and sterilizing equipment that comes into direct contact with the patient. While this is a vital part of infection control, it follows hand hygiene in the sequence of steps a phlebotomist should take.
Similar Questions
A large spill has occurred in a laboratory involving venous blood. Which of the following actions should the phlebotomist take?
A. Cover the spill until maintenance arrives.
Covering the spill until maintenance arrives is not an appropriate response to a blood spill. This action does not neutralize any potential pathogens present in the blood, which could pose a risk of infection to others. Immediate cleanup is necessary to prevent the spread of infectious diseases, and simply covering the spill does not meet the Occupational Safety and Health Administration (OSHA) guidelines for bloodborne pathogens, which require the spill to be cleaned with an appropriate disinfectant.
B. Pour bleach on the spill and let it soak for 60 seconds.
Pouring bleach on the spill and allowing it to soak for 60 seconds is the recommended action because bleach is a powerful disinfectant that can kill a wide range of pathogens, including those that might be present in venous blood. The Centers for Disease Control and Prevention (CDC) recommends a 1:10 dilution of household bleach for effectively disinfecting blood spills. After pouring the bleach, it is important to let it soak for an adequate amount of time, usually around 10 minutes, to ensure that all pathogens are killed.
C. Evacuate the laboratory.
Evacuating the laboratory is not a necessary action for a blood spill unless the spill is extensive and poses additional risks that cannot be mitigated by standard cleanup procedures. In most cases, following the proper spill cleanup protocol, which includes wearing personal protective equipment (PPE) and using an EPA-registered disinfectant, is sufficient to handle the situation without needing to evacuate the area.
D. Apply a liquid thickening agent on top of the spill.
Applying a liquid thickening agent on top of the spill is not a standard practice for blood spill cleanup. While a thickening agent might contain the spill, it does not disinfect the area. The priority in such situations is to disinfect and remove any potential infectious agents. Therefore, the use of a thickening agent would not be in compliance with the recommended procedures for blood spill cleanup by OSHA and the CDC.
Full Explanation
Choice A Reason:
Covering the spill until maintenance arrives is not an appropriate response to a blood spill. This action does not neutralize any potential pathogens present in the blood, which could pose a risk of infection to others. Immediate cleanup is necessary to prevent the spread of infectious diseases, and simply covering the spill does not meet the Occupational Safety and Health Administration (OSHA) guidelines for bloodborne pathogens, which require the spill to be cleaned with an appropriate disinfectant.
Choice B Reason:
Pouring bleach on the spill and allowing it to soak for 60 seconds is the recommended action because bleach is a powerful disinfectant that can kill a wide range of pathogens, including those that might be present in venous blood. The Centers for Disease Control and Prevention (CDC) recommends a 1:10 dilution of household bleach for effectively disinfecting blood spills. After pouring the bleach, it is important to let it soak for an adequate amount of time, usually around 10 minutes, to ensure that all pathogens are killed.
Choice C Reason:
Evacuating the laboratory is not a necessary action for a blood spill unless the spill is extensive and poses additional risks that cannot be mitigated by standard cleanup procedures. In most cases, following the proper spill cleanup protocol, which includes wearing personal protective equipment (PPE) and using an EPA-registered disinfectant, is sufficient to handle the situation without needing to evacuate the area.
Choice D Reason:
Applying a liquid thickening agent on top of the spill is not a standard practice for blood spill cleanup. While a thickening agent might contain the spill, it does not disinfect the area. The priority in such situations is to disinfect and remove any potential infectious agents. Therefore, the use of a thickening agent would not be in compliance with the recommended procedures for blood spill cleanup by OSHA and the CDC.
Which of the following methods should a phlebotomist use to invert tubes to prevent clotting?
A. Shaking the tubes 4 to 8 times after collection.
Shaking the tubes vigorously can cause hemolysis, which is the rupture of red blood cells, leading to inaccurate test results. It is not recommended as it does not provide gentle mixing and can damage the blood cells.
B. Moving the tubes in a figure-eight motion 4 to 8 times after collection.
Moving the tubes in a figure-eight motion is not a standard practice for mixing blood samples. This method may not provide the consistent and gentle inversion needed to mix the anticoagulant with the blood effectively.
C. Rolling the tubes between the palms of the hands 4 to 8 times after collection.
Rolling the tubes between the palms of the hands 4 to 8 times after collection is the recommended method. This technique allows for gentle and thorough mixing of the blood with the anticoagulant, preventing clotting without causing hemolysis. The number of inversions ensures that the anticoagulant coats the inner surface of the tube and mixes with the blood, which is essential for accurate laboratory results.
D. Passing the tubes from hand to hand 4 to 8 times after collection.
Passing the tubes from hand to hand is not an effective method for mixing blood samples. This action may not provide the necessary inversion and can lead to inadequate mixing, resulting in clotted specimens.
Full Explanation
Choice A Reason:
Shaking the tubes vigorously can cause hemolysis, which is the rupture of red blood cells, leading to inaccurate test results. It is not recommended as it does not provide gentle mixing and can damage the blood cells.
Choice B Reason:
Moving the tubes in a figure-eight motion is not a standard practice for mixing blood samples. This method may not provide the consistent and gentle inversion needed to mix the anticoagulant with the blood effectively.
Choice C Reason:
Rolling the tubes between the palms of the hands 4 to 8 times after collection is the recommended method. This technique allows for gentle and thorough mixing of the blood with the anticoagulant, preventing clotting without causing hemolysis. The number of inversions ensures that the anticoagulant coats the inner surface of the tube and mixes with the blood, which is essential for accurate laboratory results.
Choice D Reason:
Passing the tubes from hand to hand is not an effective method for mixing blood samples. This action may not provide the necessary inversion and can lead to inadequate mixing, resulting in clotted specimens.
When a phlebotomist performs a heel stick for the purposes of obtaining a PKU test, it is important to:
A. Wrap the site with a heel warmer for 30 minutes.
Wrapping the site with a heel warmer for 30 minutes is a preparatory step before the heel stick procedure. It is used to increase blood flow to the area to make the collection easier. However, it is not the action to take after the blood has been collected. The heel warmer should be removed before performing the heel stick.
B. Wipe away the first drop of blood.
Wiping away the first drop of blood is the correct procedure. The initial drop may be contaminated with tissue fluids or alcohol if the site was cleaned prior to the stick, which can affect the accuracy of the test results. Therefore, the first drop should be wiped away, and subsequent blood should be used for the PKU test.
C. Keep a pressure dressing on the site for the day.
Keeping a pressure dressing on the site for the entire day is not necessary and is not part of the standard heel stick procedure. After the blood is collected, a small bandage is typically applied to stop any bleeding. The site should be monitored for a short time for any signs of continued bleeding or bruising, but a pressure dressing for the day is excessive.
D. Target the central arch area of the foot for the least amount of discomfort.
Targeting the central arch area of the foot for the heel stick is incorrect and can be harmful. The recommended area for a heel stick is the lateral portions of the heel to minimize discomfort and avoid injury to the bone or nerves. The central arch area should be avoided to prevent potential harm.
Full Explanation
Choice A Reason:
Wrapping the site with a heel warmer for 30 minutes is a preparatory step before the heel stick procedure. It is used to increase blood flow to the area to make the collection easier. However, it is not the action to take after the blood has been collected. The heel warmer should be removed before performing the heel stick.
Choice B Reason:
Wiping away the first drop of blood is the correct procedure. The initial drop may be contaminated with tissue fluids or alcohol if the site was cleaned prior to the stick, which can affect the accuracy of the test results. Therefore, the first drop should be wiped away, and subsequent blood should be used for the PKU test.
Choice C Reason:
Keeping a pressure dressing on the site for the entire day is not necessary and is not part of the standard heel stick procedure. After the blood is collected, a small bandage is typically applied to stop any bleeding. The site should be monitored for a short time for any signs of continued bleeding or bruising, but a pressure dressing for the day is excessive.
Choice D Reason:
Targeting the central arch area of the foot for the heel stick is incorrect and can be harmful. The recommended area for a heel stick is the lateral portions of the heel to minimize discomfort and avoid injury to the bone or nerves. The central arch area should be avoided to prevent potential harm.