A culture and sensitivity test is sent to which of the following divisions of a clinical laboratory?
Serology
Microbiology
Histology
Chemistry
The Correct Answer is B
Choice A Reason:
Serology is the division of the laboratory that deals with the study of blood serum. In serology, the focus is on identifying and measuring antibodies in the serum. While serology can be used to support the diagnosis of infections, it does not involve culture and sensitivity testing, which is specific to identifying pathogens and determining their susceptibility to antibiotics.
Choice B Reason:
Microbiology is the correct division for culture and sensitivity tests. This division specializes in studying microorganisms, including bacteria, fungi, parasites, and viruses. When a culture and sensitivity test is ordered, it is the microbiology lab that cultures the sample to grow the organism and then tests various antibiotics to determine which are most effective against it.
Choice C Reason:
Histology is the study of the microscopic structure of tissues. Histology labs prepare and examine tissue samples to diagnose diseases, but they do not perform culture and sensitivity tests, which are specific to microbiology.
Choice D Reason:
Chemistry is a division of the laboratory that performs a wide range of tests to measure chemicals and enzymes in the body. These tests can include blood glucose levels, liver enzymes, and hormone levels, among others. However, chemistry does not handle culture and sensitivity testing, as this is not within the scope of chemical analysis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A Reason:
Positioning the needle at a 45° angle to the skin is not the recommended approach for venipuncture using a butterfly needle on dorsal hand veins. The correct angle for insertion is usually less than 45°, often around 15-30°, to ensure a shallow entry and reduce the risk of going through the vein.
Choice B Reason:
Holding the needle by the wings of the butterfly is the correct technique. This allows for better control and stability during insertion. The wings are designed to be held between the thumb and forefinger, providing an easy grip for the phlebotomist to maneuver the needle with precision.
Choice C Reason:
Instructing the patient to hold the collection tubes is not standard practice and could lead to pre-analytical errors. The phlebotomist should maintain control of the tubes to ensure proper blood flow and fill volume, as well as to prevent contamination or accidents.
Choice D Reason:
Applying the tourniquet at the antecubital area is not specific to the use of a butterfly needle for venipuncture on dorsal hand veins. While a tourniquet is used to engorge the veins and make them more prominent, its placement may vary depending on the selected puncture site and is not the action in question here.
Correct Answer is A
Explanation
Choice A Reason:
A quiet and professional tone of voice is essential for a phlebotomy technician when introducing themselves to a patient. This tone conveys respect and maintains a calm environment, which is particularly important in healthcare settings where patients may be anxious or fearful about medical procedures. A professional demeanor helps to establish trust and reassures the patient that they are in capable hands.
Choice B Reason:
A loud and authoritative tone is not appropriate when introducing oneself to a patient. It can be intimidating and may increase the patient's anxiety. The goal is to make the patient feel comfortable and safe, not overpowered or coerced.
Choice C Reason:
Being assertive and humorous can sometimes help to lighten the mood and make the patient feel more at ease. However, humor must be used judiciously as it may not be well-received by all patients, especially in a medical setting where they might be experiencing stress or discomfort.
Choice D Reason:
A commanding and confident tone may convey confidence, but it can also come across as overbearing. While confidence is important, it should not overshadow the need for empathy and understanding of the patient's feelings and comfort.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today