A client receives a prescription for ophthalmic ketorolac.
Prior to administering the medication, the nurse should review the medical record for which condition?

Radiation exposure

Corneal abrasion

Chemical burn

Foreign body

Answer and Explanation

The Correct Answer is B

Choice A rationale:

Radiation exposure to the eye is a serious condition that requires immediate medical attention. However, it is not a contraindication for ophthalmic ketorolac. In fact, ketorolac may be used to treat pain and inflammation associated with radiation exposure to the eye.

Ophthalmic ketorolac is a nonsteroidal anti-inflammatory drug (NSAID) that works by inhibiting the production of prostaglandins, which are substances that cause inflammation and pain.

Radiation exposure can damage the cells of the eye, leading to inflammation and pain. Ketorolac can help to reduce these symptoms.

However, it is important to note that ketorolac does not address the underlying cause of radiation exposure, and further treatment may be necessary.

Choice B rationale:

Corneal abrasion is a scratch on the surface of the cornea, the clear outer layer of the eye. It is a common eye injury that can be caused by a variety of factors, such as getting poked in the eye, rubbing the eye too hard, or wearing contact lenses for too long.

Ophthalmic ketorolac is contraindicated in patients with corneal abrasions because it can delay healing and increase the risk of infection.

This is because ketorolac inhibits the production of prostaglandins, which are involved in the healing process. Prostaglandins also play a role in fighting infection.

Therefore, using ketorolac in a patient with a corneal abrasion could potentially lead to a more serious infection.

Choice C rationale:

Chemical burn to the eye is a serious injury that requires immediate medical attention. Ophthalmic ketorolac is not typically used to treat chemical burns to the eye.

This is because ketorolac is not effective in reducing inflammation caused by chemical burns. In addition, ketorolac can potentially worsen the injury by delaying healing.

Choice D rationale:

Foreign body in the eye is a common eye injury that can be caused by a variety of objects, such as dust, sand, or metal shavings. Ophthalmic ketorolac is not typically used to treat foreign bodies in the eye.

This is because ketorolac will not help to remove the foreign body from the eye. In addition, ketorolac can potentially worsen the injury by delaying healing.

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Correct Answer is D

Explanation

Choice A rationale:

Autoimmune responses occur when the immune system mistakenly attacks the body's own tissues. They are not typically triggered by allergens like bee stings.

Autoimmune responses often develop slowly over time and present with symptoms related to the specific tissues being attacked.

The rapid onset of symptoms in this case, along with the specific symptoms of rash, shortness of breath, and low blood pressure, are not characteristic of an autoimmune response.

Choice B rationale:

Type II hypersensitivity reactions involve antibodies that target and destroy cells or tissues. These reactions often take hours or days to develop, rather than minutes.

Examples of type II hypersensitivity reactions include transfusion reactions, hemolytic disease of the newborn, and some autoimmune diseases.

The rapid onset of symptoms in this case is not consistent with a type II hypersensitivity reaction.

Choice C rationale:

Cell-mediated hypersensitivity reactions involve T cells that directly attack cells or tissues. These reactions typically take 1-3 days to develop.

Examples of cell-mediated hypersensitivity reactions include contact dermatitis (e.g., poison ivy), graft-versus-host disease, and some drug reactions.

The rapid onset of symptoms in this case, as well as the specific symptoms of rash, shortness of breath, and low blood pressure, are not characteristic of a cell-mediated hypersensitivity reaction.

Choice D rationale:

IgE response hypersensitivity reactions are the most immediate type of allergic reaction.

They are mediated by immunoglobulin E (IgE) antibodies, which bind to mast cells and basophils.

When an allergen (like bee venom) cross-links IgE antibodies on mast cells, it triggers the release of histamine and other inflammatory mediators.

These mediators cause vasodilation, increased vascular permeability, smooth muscle contraction, and mucus secretion, leading to the characteristic symptoms of an allergic reaction.

The rapid onset of symptoms in this case, including rash, shortness of breath, and low blood pressure, are consistent with an IgE-mediated hypersensitivity reaction.

A. Colloidal oatmeal-based lotion. B. Topical corticosteroids. C. Topical analgesics. D. Topical antifungal.

Correct Answer is B

Explanation

A Colloidal oatmeal-based lotion: Colloidal oatmeal can help to reduce itching and swelling, all while hydrating the skin. It is often used to soothe irritated skin and can be incorporated into a skincare routine through oatmeal baths or oatmeal-infused moisturizers. However, it is typically used as a complementary treatment and may not be sufficient to manage psoriasis symptoms on its own.

B Topical corticosteroids: These are an essential tool for treating inflammatory skin conditions such as psoriasis34. They work by reducing inflammation and slowing down the production of skin cells, which helps to alleviate symptoms such as redness, itching, and scaling. Topical corticosteroids are often the first line of treatment for mild to moderate psoriasis.

C. Topical analgesics: These are primarily used to relieve pain. While they may provide some relief from discomfort associated with psoriasis, they do not address the underlying inflammation and rapid skin cell production that characterize this condition.

D Topical antifungal: Antifungal agents are typically used to treat conditions like seborrheic dermatitis and scalp psoriasis, or in areas where psoriasis involves folds in the skin, where there is an increased potential for localized infection. However, they are not typically used as a primary treatment for psoriasis.

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A client receives a prescription for ophthalmic ketorolac.
Prior to administering the medication, the nurse should review the medical record for which condition?