Which of the following sites is appropriate to prepare for dermal specimen collection on a toddler?

Nondominant dorsal hand

Dominant lateral plantar heel

Nondominant third finger

Dominant antecubital space

Answer and Explanation

The Correct Answer is C

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

Nursing Test Bank

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Correct Answer is C

Explanation

Choice A Reason:
Signing a release for laboratory results is a form of expressed consent, not implied consent. Expressed consent is given explicitly, either orally or in writing, and is clearly and unmistakably communicated.

Choice B Reason:
Similarly, signing a document of agreement for a research study is another example of expressed consent. The patient is actively agreeing to participate in the study, which is a direct and informed action.

Choice C Reason:
Implied consent occurs when a patient's actions suggest consent without verbal or written confirmation. Offering an arm to a phlebotomist is a non-verbal communication that implies the patient is willing to have their blood drawn. This is a common practice in medical settings where the action of presenting an arm indicates readiness for the procedure.

Choice D Reason:
A family member nodding for a phlebotomist to proceed does not constitute the patient's implied consent. Consent must come directly from the patient unless they are unable to provide it, in which case a legal surrogate may give consent on their behalf.

A. Invert the tube 5 to 8 times and then set for 30 minutes prior to centrifugation. B. Invert the tube 1 to 3 times and then set for 1 hour prior to centrifugation. C. Invert the tube 2 to 4 times and then set for 15 minutes prior to centrifugation. D. Invert the tube 8 to 10 times and then set for 2 hours prior to centrifugation.

Correct Answer is A

Explanation

Choice A reason:
Inverting the tube 5 to 8 times ensures that the clot activator mixes thoroughly with the blood, promoting proper clotting. Setting the tube aside for 30 minutes allows sufficient time for the blood to clot before centrifugation. This is the recommended procedure to ensure that the serum is properly separated from the clot, resulting in a quality specimen suitable for testing.

Choice B reason:
Inverting the tube only 1 to 3 times may not be enough to mix the clot activator with the blood adequately, which could lead to incomplete clotting and potentially compromised test results. Additionally, setting the tube for 1 hour before centrifugation is longer than necessary and does not offer any advantage over the recommended 30 minutes.

Choice C reason:
Inverting the tube 2 to 4 times might not fully mix the clot activator with the blood, and setting it for only 15 minutes does not provide enough time for proper clot formation. This could result in a suboptimal separation of serum and clot, affecting the integrity of the test results.

Choice D reason:
Inverting the tube 8 to 10 times could potentially cause hemolysis or disruption of the blood cells due to excessive agitation. Setting the tube for 2 hours prior to centrifugation is not recommended as it could lead to serum degradation or other changes that may affect the test results.

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Which of the following sites is appropriate to prepare for dermal specimen collection on a toddler?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

An adult patient gives implied consent to a phlebotomist when which of the following occurs?

Correct Answer is C

Explanation

When a serum separation tube (SST) is collected, which of the following actions should the phlebotomist take to ensure optimal test results?

Correct Answer is A

Explanation

A patient who is on droplet precautions requires daily blood glucose monitoring. Besides gloves, which piece of personal protective equipment must the phlebotomist wear when drawing the sample?

Which of the following items should a phlebotomist recognize as part of the aseptic technique protocol?

Which of the following forms commonly accompanies a toxicology drug screen for legal purposes?

When performing a blood smear, which of the following actions should a phlebotomist take to ensure a quality result?

A large spill has occurred in a laboratory involving venous blood. Which of the following actions should the phlebotomist take?

A phlebotomist receives an accidental needlestick, which of the following actions should be taken first?

Which of the following information should the physician's office provide to a phlebotomist for laboratory specimen collection?

A phlebotomist enters a patient's room and observes the patient to be motionless and cyanotic. Which of the following actions should the phlebotomist take first?