Free CNRN Exam Questions That Helps Candidates Pass

Comprehensive and Detailed Explanation:

Bacterial meningitis can lead to serious neurological complications, including seizures, hearing loss, cognitive impairment, and increased intracranial pressure. Inflammation damages cranial nerves and brain tissue. Kidney stones, liver cirrhosis, and myocardial infarction are not direct complications of meningitis. Early treatment reduces the risk of permanent neurological deficits.

Comprehensive and Detailed Explanation:

Morning headaches with vomiting are classic signs of increased intracranial pressure due to brain tumor mass effect and impaired cerebrospinal fluid circulation. Symptoms worsen in the morning due to elevated CO₂ during sleep. Increased appetite, weight gain, and mild fatigue are not reliable indicators of intracranial hypertension.

Comprehensive and Detailed Explanation:

Guillain-Barré syndrome is an acute demyelinating peripheral neuropathy characterized by ascending symmetrical muscle weakness, often starting in the lower extremities and progressing upward. It may lead to respiratory failure if respiratory muscles are affected. It is typically post-infectious and autoimmune in nature. Facial droop alone suggests cranial nerve involvement but is not the hallmark pattern. Tremor and cognitive decline are not typical features of Guillain-Barré syndrome.

Comprehensive and Detailed Explanation:

Cushing’s triad—bradycardia, hypertension with widened pulse pressure, and irregular respirations—is a late sign of increased intracranial pressure. It indicates brainstem compression and requires emergency intervention. Tachycardia and hypotension are more typical of shock states. Fever and neck stiffness are more consistent with infection such as meningitis. Hypoglycemia and diaphoresis are metabolic findings unrelated to intracranial pressure.

Comprehensive and Detailed Explanation:

In suspected bacterial meningitis, antibiotics should be administered promptly after obtaining blood and cerebrospinal fluid cultures. Early treatment significantly reduces morbidity and mortality. Delaying therapy until culture results return can lead to rapid neurological deterioration. Oral fluids and positioning are supportive measures but not priority interventions in acute infection management.