The nurse recognizes that a patient is exhibiting symptoms associated with a TIA. After what period of time does the nurse determine these symptoms will subside?

Correct Answer: A

Rationale: Transient ischemic attack (TIA) is a temporary episode of neurological dysfunction caused by a temporary disruption in blood supply to the brain. The symptoms of a TIA typically last for a short period of time, usually less than 1 hour. In some cases, the symptoms may last up to 24 hours but generally resolve within a shorter time frame. It is important for healthcare providers to recognize the symptoms of a TIA promptly and assess the patient for appropriate management to prevent the risk of a full-blown stroke.

Correct Answer: A

Rationale: Acute narrow-angle glaucoma is a medical emergency that requires timely intervention to reduce intraocular pressure. Acetazolamide (Diamox) is a medication commonly used to treat this condition as it works as a carbonic anhydrase inhibitor, reducing the production of aqueous humor in the eye. By reducing the production of aqueous humor, acetazolamide helps decrease intraocular pressure rapidly, which is crucial in managing acute narrow-angle glaucoma. Other options listed, such as Furosemide (Lasix), Atropine, and Urokinase (Abbokinase), are not typically used in the treatment of acute narrow-angle glaucoma.

Correct Answer: B

Rationale: Malpractice is a type of tort that involves professional negligence or misconduct by a professional such as a nurse that results in harm to a patient. In this scenario, failing to obtain informed consent before performing a procedure is considered a breach of the standard of care expected from a healthcare professional, which falls under malpractice. This failure to obtain informed consent deprives the patient of the right to make an informed decision about their treatment and can lead to legal consequences for the nurse.

Correct Answer: B

Rationale: Albuterol, also known as salbutamol, is a beta-adrenergic agonist medication commonly used for the treatment of conditions such as asthma and COPD. As a beta-adrenergic agonist, albuterol binds to beta-2 adrenergic receptors in the lungs, causing bronchodilation, which helps to relieve bronchospasms and improve airflow to the lungs. This action leads to the relaxation of smooth muscle in the airways, thus making breathing easier for patients with COPD or asthma. Anticholinergics, corticosteroids, and methylxanthines have different mechanisms of action and are not directly related to the pharmacological action of albuterol in COPD treatment.

Correct Answer: B

Rationale: Metformin is a commonly prescribed medication for the treatment of type 2 diabetes mellitus. One of the rare but serious adverse effects associated with metformin use is lactic acidosis. Lactic acidosis results from the buildup of lactic acid in the bloodstream, leading to symptoms such as weakness, rapid breathing, abdominal pain, and muscle pain. Lactic acidosis can be life-threatening and requires immediate medical attention. It is important for patients taking metformin to be aware of the signs and symptoms of lactic acidosis and seek immediate medical help if they experience any of these symptoms. Regular monitoring of kidney function is crucial in patients taking metformin to reduce the risk of lactic acidosis.