Which of the following is caused by excessive shaking of a tube?
Hemophilia
Hemoconcentration
Hemolysis
Hemostasis
The Correct Answer is C
Choice A Reason:
Hemophilia is a genetic disorder that impairs the body's ability to make blood clots, a process needed to stop bleeding. This condition is not caused by shaking a blood collection tube; it is an inherited disorder typically caused by a mutation in one of the clotting factor genes.
Choice B Reason:
Hemoconcentration refers to an increase in the concentration of cells and solids in the blood, usually resulting from a loss of plasma. While this can occur due to various reasons, such as dehydration, it is not caused by shaking a blood collection tube. Shaking a tube does not change the ratio of cells to plasma in the blood.
Choice C Reason:
Hemolysis is the rupture of red blood cells, which can occur when a blood sample is handled roughly, such as by excessive shaking. This can cause the cells to break open and release their contents into the plasma, which can interfere with laboratory tests and lead to inaccurate results.
Choice D Reason:
Hemostasis is the process by which the body stops bleeding, which involves the clotting of blood. This process is not caused by shaking a blood collection tube. Hemostasis is a complex process that involves blood vessels, platelets, and clotting factors.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason:
The nondominant dorsal hand is not typically recommended for dermal specimen collection in toddlers due to the thinness of the skin and the proximity of bones and tendons, which increases the risk of injury.
Choice B reason:
The dominant lateral plantar heel is also not an ideal site for dermal specimen collection in toddlers. The heel is a common site for blood collection in neonates, but as children grow, the skin on the heel thickens, and the risk of hitting bone increases.
Choice C reason:
The nondominant third finger is the recommended site for dermal specimen collection in toddlers over one year of age. The palmar surface of the distal phalanx of the middle or ring finger provides a sufficient area for puncture while minimizing the risk of injury to underlying structures.
Choice D reason:
The dominant antecubital space is not a typical site for dermal specimen collection, especially in toddlers. This area is generally used for venipuncture due to the presence of larger veins suitable for this type of blood collection
Correct Answer is C
Explanation
Choice A Reason:
A multipart requisition involves multiple copies of a paper form, which can be prone to errors due to manual entry, misplacement, or illegible handwriting. While it provides physical copies for various departments, it is not the most accurate method compared to digital solutions.
Choice B Reason:
A manual requisition is similar to a multipart requisition but typically consists of a single form. It carries the same risks of human error and does not offer the benefits of automated tracking and data entry that come with electronic systems.
Choice C Reason:
An automated requisition is considered the most accurate method for receiving orders for specimen collection. It reduces the risk of human error associated with manual data entry and allows for better tracking and integration with laboratory information systems. Automated systems can also provide immediate feedback if there is an issue with the order, such as a missing patient identifier or a test code.
Choice D Reason:
A verbal requisition is the least reliable method as it depends on the memory and communication skills of the individuals involved. It lacks the documentation and verification steps present in written or automated methods, making it susceptible to misunderstandings and errors.
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