A medical assistant is caring for a patient who has documented dysphagia. The assistant should be able to explain to the patient that this condition is primarily related to which of the following?

A. Computerized physician order entry: Computerized physician order entry (CPOE) is used by providers to enter and manage orders for tests, medications, and treatments, not for patient requests.
B. Patient portal: A patient portal is a feature of an electronic health record that allows patients to request refills, schedule appointments, and access their health information online.
C. Prescribing guide: A prescribing guide helps providers make decisions about medications but does not allow patients to make requests.
D. Computer on wheels: A computer on wheels (COW) is a mobile workstation used by healthcare providers for various tasks but does not directly facilitate patient requests.

A. C-reactive protein (CRP): CRP is typically tested using a serum sample collected in a gold or red-top tube, not a light blue tube.
B. Partial thromboplastin time (PTT): PTT is a coagulation test that requires a light blue top tube containing sodium citrate, which acts as an anticoagulant. This tube is specifically used for coagulation studies.
C. Glucose: Glucose levels are commonly measured using a gray-top tube containing sodium fluoride to inhibit glycolysis, not a light blue tube.
D. Lactate: Lactate levels are typically measured using a gray-top tube or green-top tube, depending on the specific protocol, not a light blue tube.