Diagnostic Tests for Seizures
Diagnostic Tests for Seizures ( 5 Questions)
A nurse is caring for a patient who is scheduled for a magnetic resonance imaging (MRI) scan of the brain. Which of the following statements by the patient indicates a need for further teaching?
Choice A is wrong because the patient may need to have an injection of dye or contrast during the test. This can help enhance the visibility of certain structures or abnormalities in the brain¹².
Choice B is wrong because the patient may need to have flashing lights during the test. This is part of a functional MRI (fMRI) of the brain, which can measure the metabolic changes in the brain when the patient performs certain tasks¹.
This statement indicates a need for further teaching because sleep deprivation is not required for an MRI scan of the brain. Sleep deprivation is sometimes used for an electroencephalogram (EEG) test, which measures the electrical activity of the brain, but not for an MRI, which uses magnetic fields and radio waves to produce images of the brain.
Choice D is wrong because it is similar to choice A. Contrast and dye are different terms for the same substance that can be injected during an MRI scan².
This statement indicates a need for further teaching because sleep deprivation is not required for an MRI scan of the brain. Sleep deprivation is sometimes used for an electroencephalogram (EEG) test, which measures the electrical activity of the brain, but not for an MRI, which uses magnetic fields and radio waves to produce images of the brain.
Choice A is wrong because the patient may need to have an injection of dye or contrast during the test. This can help enhance the visibility of certain structures or abnormalities in the brain¹².
Choice B is wrong because the patient may need to have flashing lights during the test. This is part of a functional MRI (fMRI) of the brain, which can measure the metabolic changes in the brain when the patient performs certain tasks¹.
Choice D is wrong because it is similar to choice A. Contrast and dye are different terms for the same substance that can be injected during an MRI scan².
To prepare for an MRI scan of the brain, the patient should not eat or drink anything for four hours prior to the exam, and should not wear any metal objects, such as jewelry, hairpins, or eye makeup³⁴⁵. The patient should also inform the medical staff if they have any metal implants or devices in their body, such as pacemakers, artificial joints, or aneurysm clips¹⁴.