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?
Immediate onset
Absence of rebound congestion
Shorter duration
More potent effect
The Correct Answer is B
Choice A reason: This is incorrect because orally administered decongestants do not have an immediate onset. They take longer to act than nasal sprays because they have to be absorbed through the gastrointestinal tract. Nasal sprays act directly on the nasal mucosa and have a faster onset.
Choice B reason: This is correct because orally administered decongestants do not cause rebound congestion. Rebound congestion is a condition in which the nasal passages become more swollen and congested after the effect of the nasal spray wears off. This can lead to overuse and dependence on the nasal spray. Orally administered decongestants do not have this effect because they act systemically and not locally.
Choice C reason: This is incorrect because orally administered decongestants do not have a shorter duration. They have a longer duration than nasal sprays because they are metabolized more slowly by the liver. Nasal sprays have a shorter duration because they are eliminated more quickly by the nasal mucosa.
Choice D reason: This is incorrect because orally administered decongestants are not more potent than nasal sprays. They have a similar potency, but they have a different mechanism of action. Orally administered decongestants act on the alpha-adrenergic receptors in the blood vessels, causing vasoconstriction and reducing congestion. Nasal sprays act on the beta-adrenergic receptors in the bronchial smooth muscle, causing bronchodilation and improving airflow.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","C"]
Explanation
Choice A reason: Tremors are a common sign of hypoglycemia, which occurs when the blood glucose level drops below 70 mg/dL. Hypoglycemia can cause shakiness, nervousness, and anxiety.
Choice B reason: Polydipsia, or excessive thirst, is not a manifestation of hypoglycemia, but rather of hyperglycemia, which occurs when the blood glucose level is too high. Hyperglycemia can cause dehydration, dry mouth, and increased urination.
Choice C reason: Confusion is another common sign of hypoglycemia, which can affect the brain's function and cognition. Hypoglycemia can cause dizziness, headache, difficulty concentrating, and impaired judgment.
Choice D reason: Polyphagia, or excessive hunger, is also not a manifestation of hypoglycemia, but rather of hyperglycemia. Hyperglycemia can cause the body to break down muscle and fat for energy, resulting in weight loss and increased appetite.
Choice E reason: Polyuria, or excessive urination, is also not a manifestation of hypoglycemia, but rather of hyperglycemia. Hyperglycemia can cause the kidneys to excrete excess glucose in the urine, leading to fluid loss and electrolyte imbalance.
Correct Answer is C
Explanation
Choice A reason: Vaginal cultures are not necessary for oral contraceptive therapy. They are used to diagnose infections such as bacterial vaginosis, yeast infection, or sexually transmitted diseases.
Choice B reason: Complete blood count is not essential for oral contraceptive therapy. It is used to measure the number and types of blood cells, such as red blood cells, white blood cells, and platelets.
Choice C reason: Serum potassium level is the most important laboratory test for oral contraceptive therapy. This is because some oral contraceptives can increase the risk of hyperkalemia, which is a high level of potassium in the blood. Hyperkalemia can cause serious complications such as cardiac arrhythmias, muscle weakness, and paralysis.
Choice D reason: Pregnancy test is not a laboratory test, but a urine test. It is important to rule out pregnancy before starting oral contraceptive therapy, but it is not the most important test for the nurse to assess.
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