A nurse is assisting during a lumbar puncture.
How should the nurse position the patient for this procedure?

Choice A rationale

Topical corticosteroids are the mainstay of treatment for contact dermatitis. This inflammatory skin condition is characterized by a delayed hypersensitivity reaction, and corticosteroids reduce inflammation, pruritus, and erythema by suppressing the immune response, inhibiting cytokine release, and stabilizing lysosomal membranes, thus alleviating symptoms locally.

Choice B rationale

Intravenous corticosteroids are generally reserved for severe, widespread, or recalcitrant cases of contact dermatitis, or when there is significant systemic involvement, such as severe angioedema or airway compromise. For typical localized contact dermatitis, topical application is preferred to minimize systemic side effects.

Choice C rationale

Intravenous antibiotics are indicated for bacterial infections. Contact dermatitis is an inflammatory, non-infectious condition caused by exposure to an allergen or irritant. Therefore, antibiotics would not be a primary treatment unless there is a secondary bacterial infection complicating the dermatitis, which is not the typical initial presentation.

Choice D rationale

Oral antibiotics, like intravenous antibiotics, are used to treat bacterial infections. Contact dermatitis is not caused by bacteria but rather by an inflammatory immune response to external agents. Administering oral antibiotics without evidence of secondary bacterial infection would be inappropriate and ineffective for treating the underlying dermatitis.

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.