Which of the following samples should a phlebotomist present to the laboratory first for processing?
A sodium level from a patient who has a DNR order
A hemoglobin and hematocrit level from a patient who is postoperative
A stat potassium level from a patient in the emergency room
A peak antibiotic level from a patient who is NPO
The Correct Answer is C
Choice A reason:
A sodium level test is important for managing and monitoring a patient's electrolyte balance, particularly in critical care settings. However, a DNR order indicates that the patient has chosen not to undergo CPR, not necessarily that their condition is the most critical at the moment. Therefore, while important, it may not be the most urgent sample to process.
Choice B reason:
Postoperative monitoring of hemoglobin and hematocrit levels is crucial for detecting possible hemorrhage and ensuring proper recovery. However, unless there is an immediate concern for acute blood loss or other complications, these tests may not be as urgent as a stat test from the emergency room.
Choice C reason:
A stat potassium level is typically ordered when there is an urgent need to assess a patient's potassium due to conditions that can rapidly affect heart rhythm and muscle function. In the emergency room setting, where patients often present with acute and life-threatening conditions, stat tests are prioritized to provide rapid results that can influence immediate clinical decisions.
Choice D reason:
Peak antibiotic levels are measured to ensure therapeutic efficacy and to avoid toxicity. While important for managing a patient's treatment, especially for those who are NPO (nothing by mouth), it may not be as time-sensitive as a stat test required for an acute emergency.
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Correct Answer is D
Explanation
Choice A reason:
While maintaining compliance with Clinical Laboratory Improvement Amendments (CLIA) standards is important, it is not the primary reason for explaining the venipuncture procedure to the patient. CLIA standards primarily deal with laboratory testing and do not specifically require the explanation of procedures to patients.
Choice B reason:
Evaluating the patient's understanding is a beneficial practice as it ensures that the patient is informed and can participate in their own care. However, it is not the primary legal or ethical requirement for explaining the procedure.
Choice C reason:
Maintaining compliance with Occupational Safety and Health Administration (OSHA) standards is crucial for ensuring the safety of both the healthcare provider and the patient. OSHA standards require that certain safety protocols be followed, but they do not specifically mandate that the procedure be explained to the patient for the purpose of obtaining consent.
Choice D reason:
Obtaining the patient's consent is the primary reason a phlebotomist should explain the procedure prior to venipuncture. Informed consent is a fundamental ethical and legal principle in healthcare. It involves informing the patient about the procedure, its risks, benefits, and alternatives, and ensuring that the patient understands this information before agreeing to proceed. This process respects the patient's autonomy and right to make decisions about their own healthcare.
Correct Answer is B
Explanation
Choice A reason:
Collecting the specimen in an SST (serum separator tube) is not suitable for ABG (arterial blood gas) analysis. SST tubes are used for chemistry tests that require serum separation after centrifugation and are not designed for the preservation of blood gases.
Choice B reason:
Placing the specimen in ice is the correct action when transporting a specimen for ABG analysis. Cooling the specimen slows down metabolic processes, which can alter the levels of gases and pH in the blood if not promptly analyzed. This is particularly important if there is a delay expected in the analysis of the ABG specimen.
Choice C reason:
Collecting the specimen in sodium citrate is not appropriate for ABG analysis. Sodium citrate is an anticoagulant used in coagulation studies and would interfere with the measurement of blood gases and pH levels in an ABG analysis.
Choice D reason:
Inserting the specimen in a light-resistant package is not a standard requirement for ABG specimens. While protecting specimens from light is important for certain types of tests, such as those for bilirubin, it is not necessary for ABG analysis.
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