A client receives a prescription for ophthalmic ketorolac. Prior to administering the medication, the nurse should review the medical record for which condition?
Corneal abrasion.
Chemical burn.
Radiation exposure.
Foreign body.
The Correct Answer is A
Choice A rationale
Corneal abrasion is a contraindication for the use of ophthalmic ketorolac. Ketorolac is a nonsteroidal anti-inflammatory drug (NSAID) that can delay healing and increase the risk of further damage to the cornea.
Choice B rationale
Chemical burns are not a primary contraindication for ophthalmic ketorolac. However, the treatment of chemical burns typically involves other specific interventions, and the use of ketorolac should be carefully considered.
Choice C rationale
Radiation exposure is not a direct contraindication for the use of ophthalmic ketorolac. The medication is used to reduce inflammation and pain, which may be beneficial in managing symptoms related to radiation exposure.
Choice D rationale
A foreign body in the eye is not a primary contraindication for ophthalmic ketorolac. However, the foreign body should be removed, and the eye should be thoroughly examined before administering any medication.
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View Related questions
Correct Answer is A
Explanation
Choice A rationale
Postural drainage involves placing the client in various positions to facilitate the drainage of secretions from different parts of the lungs. Typically, the client may be placed in five positions: head down, prone, right and left lateral, and sitting upright.
Choice B rationale
Performing postural drainage immediately after meals is not recommended as it can cause nausea, vomiting, and aspiration. It is best to perform the procedure before meals.
Choice C rationale
Obtaining an arterial blood gas (ABG) prior to the procedure is not a standard requirement for postural drainage. ABGs are typically obtained to assess the client’s respiratory status but are not necessary for the procedure itself.
Choice D rationale
Instructing the client to breathe shallow and fast is not appropriate for postural drainage. The client should be encouraged to breathe slowly and deeply to help keep the airways open and facilitate the drainage of secretions.
Correct Answer is B
Explanation
Choice A rationale
An increase in B-lymphocytes and IgM is not how HIV suppresses the immune system. B-lymphocytes are responsible for producing antibodies, and IgM is a type of antibody. HIV primarily affects T-lymphocytes, specifically helper T-cells (CD4 cells), rather than B-lymphocytes.
Choice B rationale
The destruction of helper T-cells and CD4 cells is the primary mechanism by which HIV suppresses the immune system. HIV targets and infects these cells, leading to their depletion. Helper T-cells play a crucial role in coordinating the immune response, and their loss results in a weakened immune system, making the body more susceptible to infections and diseases.
Choice C rationale
A deficiency of cytotoxic T cells is not the primary mechanism by which HIV suppresses the immune system. Cytotoxic T cells (CD8 cells) are involved in directly killing infected cells, but the main impact of HIV is on helper T-cells (CD4 cells), which are essential for orchestrating the immune response.
Choice D rationale
The proliferation of suppressor T-cells is not how HIV suppresses the immune system. Suppressor T-cells (regulatory T cells) help regulate and control the immune response, but HIV primarily affects helper T-cells (CD4 cells), leading to their destruction and a weakened immune system.