Nokea
Dopamine is an important neurotransmitter. Which disease or disorder results when the neurons in the brain that produce dopamine die?
- A. Multiple sclerosis
- B. Lou Gehrig disease (amyotrophic lateral sclerosis)
- C. Parkinson disease
- D. Seizure disorder
Correct Answer: C
Rationale: Parkinson disease is caused by the degeneration of dopamine-producing neurons in the brain, leading to motor symptoms such as tremors and rigidity. Multiple sclerosis and ALS involve different neurological mechanisms, while seizure disorders are related to abnormal electrical activity in the brain. Dopamine's role in motor control is critical to understanding Parkinson disease.
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A 30-year-old female presents with muscle weakness in the lower extremities and palpitations. Her symptoms have been progressively worse over the course of a 2 weeks. She reports to be in great health, but had a period of abdominal pain and diarrhea approximately 5 weeks ago. Her temperature is 98.9 deg F (37.2 deg C), blood pressure 117/82 mmHg, pulse is 102/min, and respirations are 16/min. On physical exam, there is 4-/5 muscle strength throughout the lower extremities. Bilateral patellar reflexes are 1+ and ankle reflexes are absent. Lumbar puncture was performed, and results are pending. Part 2: What is the most appropriate initial treatment?
- A. High dose corticosteroids
- B. Intravenous immunoglobulin
- C. Potassium chloride
- D. Pyridostigmine
Correct Answer: B
Rationale: Intravenous immunoglobulin (IVIG) is the first-line treatment for Guillain-Barre syndrome (GBS). It works by modulating the immune response and reducing the severity of the disease. High-dose corticosteroids are not effective in GBS, and potassium chloride and pyridostigmine are not indicated for this condition.
The nurse writes the client problem of 'altered sexual functioning' for a male client diagnosed with multiple sclerosis (MS). Which intervention should be implemented?
- A. Encourage the couple to explore alternative ways of maintaining intimacy.
- B. Make an appointment with a psychotherapist to counsel the couple.
- C. Explain daily exercise will help increase libido and sexual arousal.
- D. Discuss the importance of keeping physically calm during sexual intercourse.
Correct Answer: A
Rationale: Exploring alternative ways to maintain intimacy can help the client and their partner adapt to changes in sexual functioning caused by MS.
KL is a 34-year-old male admitted to the hospital (large trauma center) after suffering a traumatic brain injury (TBI) secondary to a serious motor vehicle accident. He was in excellent health prior to the accident. HT: 6'2" WT: 190 pounds (86 kg) What level of energy intake per day is the most appropriate for KL?
- A. 1,800 kcal
- B. 2,100 kcal
- C. 2,400 kcal
- D. 2,700 kcal
Correct Answer: C
Rationale: For a patient with traumatic brain injury (TBI), an energy intake of approximately 2,400 kcal/day is often appropriate to meet increased metabolic demands while avoiding overfeeding, which can exacerbate complications like hyperglycemia or respiratory issues.
What is the major focus for care today for a patient who is 1 day post-operative after a left below-the-knee amputation?
- A. To attain pain control for phantom pain.
- B. To monitor for signs of sufficient tissue perfusion.
- C. To assist the patient to ambulate as soon as possible.
- D. To elevate the residual limb when the patient is supine.
Correct Answer: B
Rationale: Ensuring adequate tissue perfusion is critical in the immediate post-operative period to prevent complications.
Nerve impulses are picked up by a neuron's (nerve cell):
- A. dendrites
- B. axon
- C. neuron cell body
- D. synapse
Correct Answer: A
Rationale: Dendrites are the part of a neuron responsible for receiving nerve impulses from other neurons or sensory receptors. They are branched structures that extend from the cell body and contain receptors for neurotransmitters. When neurotransmitters bind to these receptors, they generate electrical signals that travel toward the cell body, initiating communication between neurons. Dendrites play a crucial role in integrating incoming signals and determining whether the neuron will fire an action potential.