A patient who has been diagnosed with depression asks why the provider has not ordered a monoamine oxidase (MAO) inhibitor to treat the disorder. The nurse will explain to the patient that MAO inhibitors

are no longer approved for treating depression.

are more expensive than other antidepressants.

require strict dietary restrictions.

can cause profound hypotension.

Answer and Explanation

The Correct Answer is C

A) Are no longer approved for treating depression: MAO inhibitors (MAOIs) are still approved and used to treat depression, especially in cases where other medications have not been effective. They are not considered obsolete, though their use has become less common due to the availability of safer, more tolerable options. This is not the primary reason why MAOIs may not be prescribed.

B) Are more expensive than other antidepressants: While cost can be a factor in medication choice, it is not the primary reason why MAO inhibitors are less frequently prescribed for depression. There are other more significant concerns, such as side effects and dietary restrictions, that make other medications a preferred first-line choice.

C) Require strict dietary restrictions: This is the most accurate explanation. MAO inhibitors can cause dangerous interactions with certain foods that contain high levels of tyramine, such as aged cheeses, cured meats, and fermented products. Consuming these foods while on an MAOI can lead to a hypertensive crisis, which is a life-threatening condition. Because of these dietary restrictions, patients on MAOIs must adhere to a strict diet, which can be challenging to manage.

D) Can cause profound hypotension: While hypotension can occur as a side effect of MAOIs, it is not the most significant concern. The more serious risk with MAOIs is the potential for a hypertensive crisis due to dietary interactions with tyramine-containing foods, rather than hypotension. Therefore, the dietary restrictions are a more pressing issue than the risk of hypotension.

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Correct Answer is C

Explanation

A) Norepinephrine (Levophed): Norepinephrine is a potent vasoconstrictor primarily used in acute hypotensive states to raise blood pressure. It is not indicated for the treatment of seasonal rhinitis, as its primary effect is not on the nasal passages or the symptoms associated with allergies, such as congestion.

B) Dopamine (Intropin): Dopamine is typically used in critical care settings for conditions such as shock and low blood pressure. While it affects dopaminergic and adrenergic receptors to improve renal perfusion and increase heart rate, it is not used to treat conditions like seasonal rhinitis, which involve nasal congestion.

C) Ephedrine (generic): Ephedrine is a sympathomimetic drug that stimulates alpha-adrenergic receptors, leading to vasoconstriction in the nasal passages and a reduction in swelling and congestion. This makes it a suitable choice for managing the symptoms of seasonal rhinitis, as it helps relieve nasal congestion by constricting blood vessels in the nasal mucosa.

D) Dobutamine (Dobutrex): Dobutamine is primarily used in the treatment of heart failure and shock because it increases heart rate and cardiac output. It does not have the properties needed to alleviate nasal congestion in rhinitis and is therefore not appropriate for this condition.

A. Tacrine (Cognex) B. Rivastigmine (Exelon) C. Carbidopa-levodopa (Sinemet) D. Donepezil (Aricept)

Correct Answer is C

Explanation

A) Tacrine (Cognex): Tacrine is an acetylcholinesterase inhibitor used in the treatment of Alzheimer's disease to improve cognitive function. It is not typically used for Parkinson's disease, which is characterized by motor symptoms such as tremors, shuffling gait, and rigidity.

B) Rivastigmine (Exelon): Rivastigmine is another acetylcholinesterase inhibitor, similar to Tacrine, primarily used to treat Alzheimer's disease or dementia-related symptoms. While it helps with cognitive symptoms, it is not effective in treating the motor symptoms of Parkinson's disease.

C) Carbidopa-levodopa (Sinemet): This is the correct answer. Carbidopa-levodopa (Sinemet) is the gold standard treatment for Parkinson's disease. Levodopa is a precursor to dopamine, which helps address the dopamine deficiency in the brain that causes symptoms like tremors, shuffling gait, and lack of facial expression (masked facies). Carbidopa is added to prevent levodopa from being broken down before it reaches the brain, enhancing its effectiveness.

D) Donepezil (Aricept): Donepezil is also an acetylcholinesterase inhibitor used primarily in Alzheimer's disease. Like Tacrine and Rivastigmine, it works to improve cognitive function but does not treat the motor symptoms seen in Parkinson's disease. It would not be appropriate for managing the patient's Parkinsonian symptoms.

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A patient who has been diagnosed with depression asks why the provider has not ordered a monoamine oxidase (MAO) inhibitor to treat the disorder. The nurse will explain to the patient that MAO inhibitors

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A patient comes to the clinic complaining of seasonal rhinitis. What adrenergic agonist will be prescribed for seasonal rhinitis?

Correct Answer is C

Explanation

An older patient exhibits a shuffling gait, lack of facial expression, and tremors at rest. The nurse will expect the provider to order which medication for this patient?

Correct Answer is C

Explanation

When hormones, formed within a cell, move across the cell membrane, the process is call what?

The nurse is preparing to care for a patient who has myasthenia gravis. The nurse will be alert to symptoms affecting which body system in this patient?

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How does ephedrine act on the body?

The mental health nursing instructor is talking with the class about depression. what deficiency does the instructor explain will result in depression?

The nurse assess that the patient is having a sympathetic response when noting what manifestation?

When there is stimulation of the sympathetic nervous system (SNS), blood is diverted away from the gastrointestinal (GI) tract. What might the nurse assess that would indicate this diversion of blood flow to the GI tract?