Correct Answer: C

Rationale: Beta-adrenergic agonists stimulate beta-adrenergic receptors in the heart, leading to an increase in heart rate (tachycardia). This is a common adverse effect associated with the use of beta-adrenergic agonists in the management of conditions such as asthma. Monitoring for tachycardia is important because it can potentially lead to other complications such as palpitations, arrhythmias, and exacerbation of underlying cardiovascular conditions. It is essential for the nurse to closely monitor the patient for any signs or symptoms of tachycardia and report any abnormalities to the healthcare provider promptly to ensure appropriate management and prevent further complications.

Correct Answer: D

Rationale: An advance directive is a legal document that specifies a person's healthcare preferences and instructions for medical treatment in the event they are unable to communicate their wishes. It typically includes decisions about life-sustaining treatments, resuscitation, and end-of-life care. In the scenario provided, the document provided by the patient to the nurse outlining his healthcare team's instructions postoperatively indicates that he has an advance directive in place to guide his medical care if necessary. In contrast, informed consent is a process in which a patient gives permission for medical treatment after being informed about the risks, benefits, and alternatives. Patient's Bill of Rights outlines the patient's rights within the healthcare system, and an insurance card provides information about the patient's insurance coverage.

Correct Answer: C

Rationale: Providing oral rehydration with electrolyte solutions is the appropriate action for managing a conscious patient with suspected heat cramps. Heat cramps are muscle pains or spasms that often occur during intense exercise in hot environments when a person sweats excessively, losing both fluids and electrolytes. Replenishing lost fluids and electrolytes through oral rehydration helps address the underlying cause of the cramps and provides relief to the patient. Massaging the affected muscles vigorously can potentially worsen the condition, applying cold packs is not usually recommended for heat-related conditions, and encouraging the patient to continue strenuous activity can lead to further complications.

Correct Answer: A

Rationale: The diagnostic examination for osteoporosis typically involves measuring bone density. This is usually done through a dual-energy x-ray absorptiometry (DEXA) scan, which is considered the gold standard for assessing bone density. Osteoporosis is characterized by decreased bone mass and deterioration of bone tissue, leading to increased bone fragility and risk of fractures. Measuring bone density helps in diagnosing osteoporosis by identifying areas of low bone density, assessing the risk of fractures, and monitoring the effectiveness of treatment. Weight, blood volume, and height are not directly used as primary indicators for diagnosing osteoporosis.

Correct Answer: A

Rationale: The correct practice in this situation would be to have a dedicated fire extinguisher in every strategic location throughout the hospital. Having fire extinguishers readily available in key areas ensures that they can be accessed quickly in case of a fire emergency. Placing one fire extinguisher between two units may not be sufficient as it may not be easily accessible in the event of a fire. Fire extinguishers should not be replaced with fire sensors as these serve different functions. Additionally, borrowing fire extinguishers may not be a safe or reliable practice, as they should be properly maintained and placed according to safety standards. Therefore, having dedicated fire extinguishers in every strategic location is the best practice to ensure the safety and well-being of individuals in the hospital.