A phlebotomist should recognize that proper hand hygiene can result in which of the following?
A decrease in the incidence of health care-associated infections
An increase in the accuracy of laboratory results
A decrease in the rejection of laboratory specimens
An increase in the potential sources of pathogens
The Correct Answer is A
Choice A Reason:
Proper hand hygiene is one of the most effective measures to prevent the spread of infections within health care settings. By thoroughly cleaning hands, phlebotomists and other health care workers can significantly reduce the transmission of pathogens that can lead to health care-associated infections (HAIs). These infections are a major cause of morbidity and mortality among hospitalized patients and can be prevented by adhering to strict hand hygiene protocols.
Choice B Reason:
While hand hygiene is crucial for preventing contamination and infection, it does not directly increase the accuracy of laboratory results. The accuracy of laboratory results is more dependent on the proper collection, handling, and processing of specimens, as well as the precision of the testing equipment and methodologies used.
Choice C Reason:
Good hand hygiene can help decrease the rejection of laboratory specimens by preventing contamination. Contaminated specimens can lead to inaccurate results and may need to be recollected, which is inconvenient for the patient and can delay diagnosis and treatment. However, the primary outcome of proper hand hygiene is the prevention of HAIs, rather than the reduction of specimen rejection.
Choice D Reason:
Proper hand hygiene leads to a decrease, not an increase, in the potential sources of pathogens. By effectively removing germs from the hands, the risk of transmitting infectious agents is minimized. This is essential in a health care setting where patients may be vulnerable to infections due to weakened immune systems or open wounds.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason:
The BUN test measures the amount of urea nitrogen in the blood, which can indicate kidney function. Fasting is not typically required for a BUN test unless it is being conducted alongside other tests that may require fasting.
Choice B reason:
An HDL test is part of a lipid profile that measures the levels of good cholesterol in the blood. Fasting before a cholesterol test, including HDL, is often recommended to ensure accuracy, although recent guidelines have changed, allowing for nonfasting cholesterol testing in certain individuals.
Choice C reason:
An ABG test measures oxygen and carbon dioxide levels in the blood and assesses the body's acid-base balance. Preparation for an ABG test does not typically require fasting, but patients may need to stop supplemental oxygen before the test to get accurate measurements.
Choice D reason:
A CBC test, or complete blood count, does not require fasting. It measures various factors of the blood, including red and white blood cells and platelets. Fasting is not necessary unless the CBC is part of a panel of tests that includes tests requiring fasting.
Correct Answer is D
Explanation
Choice A reason:
The axillary vein is not commonly used for routine venipuncture due to its location in the armpit area, where it is more difficult to access and poses a higher risk of complications.
Choice B reason:
The median cubital vein is often the vein of choice for venipuncture due to its size and accessibility. However, in the case of a patient with bilateral scarring on the forearms, this vein may be compromised, making it a less suitable option.
Choice C reason:
The basilic vein, while also a common site for venipuncture, is located on the inner aspect of the arm and may be affected by the scarring on the patient's forearms. Additionally, it is closer to nerves and arteries, which increases the risk of complications.
Choice D reason:
The dorsal hand veins are a good alternative for venipuncture when the more common sites are not available, such as in the case of a patient with bilateral scarring on the forearms. These veins are usually more superficial and can be accessed with minimal risk of complications.
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