The nurse is asked by the spouse of a patient with a head injury why a CT scan is being done rather than an MRI. The best response from the nurse would be
1. CT scans are easier for patients with head injuries because movement is allowed.
2. MRIs are more costly so the least expensive test is always done first.
3. CT scans are the test of choice because they are noninvasive, produce rapid results, and can identify hematomas and edema that accompany some head injuries.
4. MRIs cannot detect pathologic processes earlier than the CT scan.
3
Rationale: The CT scan is the test of choice with head injury patients because MRIs take longer and there can be limitations related to the presence of metal in the patient's body. CT scans can also detect changes in bone density which helps identify fractures. CT scans do not necessarily provide more patient movement while the test is being conducted. MRIs may be more costly however the nurse should not state that the least expensive test is usually done first. MRIs can detect pathologic processes as quickly as the CT scan so this response is incorrect for the nurse to make.
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Outline the current CDC guidelines for the treatment of LTBI
What would be an ideal response?