A nurse is preparing a patient for magnetic resonance imaging (MRI) scan to confirm or rule out a spinal cord lesion.
Which action would pose a threat to the patient during the procedure?
The patient receives lorazepam 1 mg by mouth prior to the procedure.
The patient eats breakfast prior to the procedure.
The patient wears a watch and wedding band.
The patient is positioned supine.
The Correct Answer is C
Choice A rationale
Lorazepam is an anxiolytic medication that can help reduce anxiety and claustrophobia, which are common concerns during an MRI. Administering 1 mg orally is a standard and safe practice to promote patient comfort and cooperation without posing a direct threat during the procedure itself.
Choice B rationale
Eating breakfast prior to an MRI scan is generally not contraindicated unless the scan requires a specific type of contrast that necessitates fasting, or if sedation is planned. For a standard MRI of the spine, food intake typically does not interfere with the imaging or pose a safety risk.
Choice C rationale
A watch and wedding band are metallic objects. MRI utilizes strong magnetic fields; ferromagnetic materials are highly attracted to these fields and can become projectiles, posing a significant risk of injury to the patient or personnel. These items can also cause image artifacts.
Choice D rationale
Positioning the patient supine is a common and appropriate position for an MRI of the spine. This position helps to immobilize the patient and allows for optimal alignment of the spinal column within the scanner, facilitating clear image acquisition without posing a safety threat.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
Cerebral angiography involves injecting contrast into cerebral arteries to visualize blood vessels, primarily used for conditions like aneurysms or arteriovenous malformations. While some vascular abnormalities can cause seizures, it is not the primary diagnostic test for initial seizure disorder evaluation.
Choice B rationale
Electromyography (EMG) measures the electrical activity of muscles in response to nerve stimulation. It is used to diagnose neuromuscular disorders, such as myasthenia gravis or peripheral neuropathies, and is not the primary diagnostic tool for a seizure disorder.
Choice C rationale
A lumbar puncture involves collecting cerebrospinal fluid (CSF) for analysis, primarily used to diagnose infections, inflammatory conditions, or certain neurological disorders. While it might be performed in some seizure contexts to rule out infection, it is not the initial or primary test for seizure disorder diagnosis.
Choice D rationale
Electroencephalography (EEG) records the electrical activity of the brain. It is the gold standard for diagnosing seizure disorders because it can detect abnormal neuronal discharges characteristic of seizures and help classify seizure types, providing crucial information for treatment planning.
Correct Answer is ["0.9"]
Explanation
Step 1: Calculate the volume to administer:. 35 mg ÷ (40 mg/mL) = 0.875 mL.
Step 2: Round to the nearest tenth:. 0.875 mL rounded to the nearest tenth is 0.9 mL. Final calculated answer: 0.9 mL.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.