A gardener needs a decongestant because of seasonal allergy problems and asks the nurse whether he should take an oral form or a nasal spray. Which of these is a benefit of orally administered decongestants?

Choice A reason: The client waits 10 min between inhalations is not the correct answer. This is not a recommended practice for using an albuterol inhaler. The client should wait at least 1 min between inhalations to allow the medication to reach the lungs and avoid overdose.

Choice B reason: The client takes a quick inhalation while releasing the medication from the inhaler is the correct answer. This is the correct way to use an albuterol inhaler. The client should breathe in quickly and deeply while pressing down on the inhaler to release the medication. This ensures that the medication is delivered to the airways and not the mouth or throat.

Choice C reason: The client exhales as the medication is released from the inhaler is not the correct answer. This is not a recommended practice for using an albuterol inhaler. The client should exhale before using the inhaler, not during or after. Exhaling while using the inhaler can cause the medication to be wasted or to irritate the mouth or throat.

Choice D reason: The client holds his breath for 10 seconds after inhaling the medication is not the correct answer. This is not a recommended practice for using an albuterol inhaler. The client should hold his breath for only a few seconds after inhaling the medication, not 10 seconds. Holding the breath for too long can cause dizziness, headache, or chest discomfort.

Choice A reason: This is incorrect because insulin can be given intravenously in certain situations, such as diabetic ketoacidosis, hyperglycemic hyperosmolar state, or perioperative care.

Choice B reason: This is correct because regular insulin is the only type of insulin that can be administered intravenously, as it is a short-acting insulin that has a rapid onset and peak. Other types of insulin, such as intermediate-acting or long-acting, are not suitable for intravenous use, as they have a delayed onset and peak and may cause hypoglycemia.

Choice C reason: This is incorrect because insulin aspart and insulin lispro are rapid-acting insulins that have a faster onset and peak than regular insulin. They are not recommended for intravenous use, as they may cause severe hypoglycemia. They are usually given subcutaneously before meals to control postprandial blood glucose levels.

Choice D reason: This is incorrect because not all forms of insulin can be administered intravenously, as explained above. Only regular insulin can be given intravenously, and the dose may differ from the subcutaneous dose depending on the patient's blood glucose level and insulin sensitivity.