CNRN Practice Test

FREE Certified Neuroscience Registered Nurse MCQ Questions and Answers

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A man who had suffered a stroke was admitted to the hospital. He has a history of using cocaine. His vital signs and lab results are as follows: blood pressure is 20/89, an EKG reveals atrial fibrillation with 110 beats per minute, his hemoglobin A1c is 5.6%, and his complete blood count and basic metabolic panel are unremarkable. How many potential causes of a stroke did this patient have?

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Stroke risk factors include male sex, cocaine usage, hypertension, and atrial fibrillation. Pregnancy, hyperlipidemia, diabetes, coronary artery disease, obesity, and tobacco use are examples of additional risk factors.

Which of the following does warfarin users not need to avoid?

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Vitamin K levels in iceberg lettuce are very low. High levels of vitamin K are present in dark green, leafy vegetables including chard, spinach, kale, brussel sprouts, and collard greens, which should only be consumed in moderation. Warfarin and other natural supplements like ginger and cranberries can also cause bleeding to last longer. Alcohol should be avoided since it can make falls more likely, which is especially dangerous for people who are using blood thinners. Warfarin and alcohol both have the potential to lengthen the bleeding time.

At the bedside, a patient's condition following a car accident is being assessed. The patient is intubated; he withdraws in response to unpleasant stimuli and his eyes open to sternal rub. What is his GCS, or Glasgow Coma Scale?

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The GCS of the patient is seven, or E2V1M4.

A patient's neurological examination has been deteriorating after a severe occurrence that may have caused hypoxic brain injury. She does not respond to unpleasant stimuli, take spontaneous breaths while on the ventilator, or dilate in response to light. If the family declines a palliative care consultation, which of the following is appropriate?

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The brain death protocol would be acceptable for a patient who has lost their brainstem reflexes. To show whether or not the brain receives blood flow, imaging with a radioactive isotope is used. The patient's brain death will be demonstrated by this test in conjunction with an apnea test. A clinician must be able to identify the reason of the vegetative state before starting the brain death treatment. The trauma was significant in this instance. The patient's body temperature must be normal or nearly normal, they cannot be using sedatives or paralytics, and they cannot have any endocrine, acid-base, or paralytic conditions.

The intensive care unit is evaluating a patient who was admitted to the hospital with an acute right-sided ischemic stroke. Which of the following would worry the medical staff the most?

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Any patient who has recently experienced a stroke and a new neurological change requires an immediate head CT or brain MRI to check for cerebral edema and/or bleeding. The other problems are significant but not immediately dangerous.

In which of the following injuries is a percutaneous gastrostomy (PEG) tube most likely required?

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An indwelling catheter for incontinence, a tracheostomy for respiratory insufficiency, a PEG tube for feeding, and complete assistance with activities of daily living, such as eating, dressing, washing, and getting in and out of bed, are all required in the case of a C2 fracture. It's possible for someone who has a C7 fracture to breathe and speak normally. Most persons have proper shoulder movement and can straighten their arm. With some help, they might be able to feed themselves. Thoracic fracture patients may be paraplegic but may handle the majority of daily tasks on their own and are unlikely to require a feeding tube.

A patient who is attempting to get pregnant asks what she may do to help prevent spina bifida from occurring in her unborn child. What is the best course of action?

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The greatest strategy to help prevent spina bifida is to consume folic acid-rich foods like oranges, spinach, and garbanzo beans as well as take a folic acid supplement before becoming pregnant. A folate shortage leads to the neural tube defect known as spina bifida. It manifests at conception; it is too late to wait until after the pregnancy has been discovered. The recommended daily intake for most adults is 400 mcg of folate. 800 mcg should be consumed by women who are pregnant, attempting to get pregnant, or nursing.