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Introduction: Artrial puncture is an invasive technique in which needle is inserted into an artery rather than a vein. This is a difficult and more painful and hazardous technique than venipuncture.
Answer to Problem 1SRQ
Correct answer: “The primary reason for performing arterial puncture is to evaluate blood gases”. Therefore, option b. is correct.
Explanation of Solution
Reason for the correct answer:
Option b. is given as “evaluate blood gases”.
Arterial blood gas (ABG) tests are the primary cause of performing arterial puncture. This test evaluates the acidity, pH, and the levels of gases, such as oxygen and carbon dioxide from an artery. The test is used to check how the lungs are able to move and remove oxygen and carbon dioxide respectively.
Hence, option b. is correct.
Reasons for incorrect answers:
Option a. is given as “determine hemoglobin levels”.
Arterial puncture is generally not used to determine hemoglobin levels. Therefore, option a. is incorrect.
Option c. is given as “measure potassium levels”.
Arterial puncture is generally not used to measure blood potassium levels. Therefore, option c. is incorrect.
Option d. is given as “obtain calcium values”.
Arterial puncture is generally not used to obtain blood calcium values. Therefore, option d. is incorrect.
Hence, options a., c., and d. are incorrect.
Evaluation of blood gases is the primary reason for performing arterial puncture.
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