The health care provider prescribes scopolamine for a client who is planning to take cruise and is concerned about motion sickness. What information in the past medical history would serve as a contraindication for this medication?
Peptic ulcer
Asthma
Heart disease
Glaucoma
The Correct Answer is D
A) Peptic ulcer: Scopolamine is an anticholinergic medication that works by blocking acetylcholine, which can reduce nausea and motion sickness. While scopolamine can have anticholinergic effects that may slightly reduce gastric motility, it is not directly contraindicated in clients with a history of peptic ulcer. The medication does not significantly exacerbate the condition of peptic ulcers.
B) Asthma: While scopolamine can have anticholinergic effects that may lead to dry mouth and slight airway narrowing, it is not contraindicated in clients with asthma. However, the nurse should be cautious and monitor the client for any signs of respiratory distress, as anticholinergic medications can cause some bronchial smooth muscle relaxation, which could theoretically worsen asthma symptoms. It is not an absolute contraindication.
C) Heart disease: Scopolamine is not specifically contraindicated for individuals with heart disease, although caution should be used in patients with cardiovascular conditions due to its potential effects on heart rate and blood pressure. However, heart disease itself is not a direct contraindication for the use of scopolamine.
D) Glaucoma: Scopolamine is an anticholinergic medication, and anticholinergics can increase intraocular pressure. This is especially dangerous for clients with narrow-angle glaucoma, as the medication can exacerbate the condition, leading to a potential acute glaucoma attack. Therefore, individuals with a history of glaucoma, particularly narrow-angle glaucoma, should avoid scopolamine.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["4"]
Explanation
Convert micrograms (mcg) to milligrams (mg):
The prescribed dose is 200 mcg.
We know that 1 mg = 1000 mcg.
Therefore, 200 mcg = 200 / 1000 = 0.2 mg.
Calculate the number of tablets:
Each tablet contains 0.05 mg of levothyroxine.
The desired dose is 0.2 mg.
We can use the following formula: (Desired dose) / (Tablet strength) = Number of tablets
(0.2 mg) / (0.05 mg/tablet) = 4 tablets
Correct Answer is C
Explanation
A) Hypersensitivity reaction: A hypersensitivity reaction typically involves an immune response where the body reacts to a substance as if it were harmful, leading to symptoms like rashes, swelling, or difficulty breathing. However, low hemoglobin and low white blood cell counts are not typical signs of a hypersensitivity reaction. This would involve more common allergic symptoms like itching or swelling, rather than hematologic changes.
B) Paradoxical reaction: A paradoxical reaction refers to when a medication causes an effect opposite to the expected result. For example, a sedative causing agitation instead of sleepiness. While a paradoxical reaction can involve unexpected effects, the hematologic changes (low hemoglobin and white blood cell counts) in this scenario do not align with this type of response.
C) Idiosyncratic reaction: An idiosyncratic reaction is an unusual or unexpected response to
a medication that is not related to the drug's pharmacologic properties or the dose given. It may be related to genetic factors or other individual differences in how a person metabolizes or responds to the drug. The low hemoglobin and low white blood cell counts in this case are unusual effects of diphenhydramine and suggest an idiosyncratic response, where the client’s body is reacting in an unexpected way to the medication.
D) Anti-cholinergic reaction: Anti-cholinergic reactions are typically related to symptoms caused by the blocking of acetylcholine, such as dry mouth, blurred vision, urinary retention, or constipation. While diphenhydramine has anti-cholinergic properties, the symptoms described (low hemoglobin and white blood cell counts) are not typical of an anti-cholinergic reaction.
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