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 B
Explanation
Choice A reason: This is incorrect because hypoxia does not cause an increased need for insulin, but rather a decreased utilization of glucose by the cells. Hypoxia can also impair the secretion of insulin by the pancreas.
Choice B reason: This is correct because corticosteroids are known to cause hyperglycemia by stimulating gluconeogenesis, inhibiting glucose uptake, and increasing insulin resistance. The patient may need to adjust his insulin dose or switch to oral antidiabetic agents while on corticosteroid therapy.
Choice C reason: This is incorrect because antibiotics do not cause an increase in glucose levels, unless they are combined with other drugs that affect glucose metabolism, such as sulfonamides or fluoroquinolones.
Choice D reason: This is incorrect because type 2 diabetes does not convert to type 1 diabetes, as they are different types of diabetes with different causes and mechanisms. Type 1 diabetes is caused by autoimmune destruction of the beta cells of the pancreas, resulting in absolute insulin deficiency. Type 2 diabetes is caused by insulin resistance and relative insulin deficiency.
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