Test your Knowledge

Welcome to the NBCRNA’s Question of the Week page. The question of the week (QOTW) serves as an extension of the NBCRNA’s CPCA Practice  and allows for CRNA’s to become familiar with question types and content while testing their knowledge. Each week a new question will be posted on Facebook and Twitter, with the answer(s) and rationale provided here. Be sure to follow NBCRNA on social media and never miss a question! 


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QOTW-TEST3

QOTW - 5.22.20

 

Answers: C, D

Rationale: Cardiopulmonary changes associated with the application of acrylic bone cement during hip replacement surgery include hypotension secondary to cement monomer absorption, hypoxemia secondary to air embolization, and hypoxemia secondary to fat embolization. Hypotension has been attributed to absorption of methyl methacrylate monomer, embolization of air and bone marrow, lysis of red cells and marrow, and conversion of methyl methacrylate to methacrylic acid. Hypoxemia commonly occurs. Embolic events cause increased dead space, with reduced ETCO2 and increased PaCO2.Cardiopulmonary changes associated with the application of acrylic bone cement during hip replacement surgery include hypotension secondary to cement monomer absorption, hypoxemia secondary to air embolization, and hypoxemia secondary to fat embolization. Hypotension has been attributed to absorption of methyl methacrylate monomer, embolization of air and bone marrow, lysis of red cells and marrow, and conversion of methyl methacrylate to methacrylic acid. Hypoxemia commonly occurs. Embolic events cause increased dead space, with reduced ETCO2 and increased PaCO2.

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