Free CNRN Exam Questions That Helps Candidates Pass

Comprehensive and Detailed Explanation:

Bacterial meningitis, especially meningococcal infection, is transmitted via respiratory droplets, requiring droplet precautions such as mask use and patient isolation. Contact precautions are used for direct-contact pathogens. Airborne precautions are for diseases like tuberculosis. Standard precautions alone are insufficient due to high transmissibility.

Comprehensive and Detailed Explanation:

Posterior fossa tumors affect the brainstem and cranial nerves, leading to deficits such as dysphagia (CN IX and X involvement), facial weakness (CN VII), and other cranial nerve abnormalities. These findings reflect compression or infiltration of brainstem structures. Loss of smell is related to CN I and anterior cranial fossa lesions. Increased hearing sensitivity is not a neurological deficit associated with tumors.

Comprehensive and Detailed Explanation:

In meningitis, inflammation can lead to increased intracranial pressure. Papilledema (optic disc swelling) and diplopia (due to cranial nerve VI palsy) are signs of elevated ICP. These findings suggest worsening neurological involvement. Chronic cough and joint pain are not central nervous system manifestations. Skin rash may occur in meningococcal disease but does not indicate ICP elevation.

Comprehensive and Detailed Explanation:

Bacterial meningitis presents with fever, neck stiffness, and photophobia due to inflammation of the meninges. It is a rapidly progressing neurological emergency requiring immediate antibiotic therapy. Mild fatigue, dizziness, and muscle cramps are nonspecific and not diagnostic of meningitis.

Comprehensive and Detailed Explanation:

Posterior cerebral artery strokes commonly affect the occipital lobe, leading to visual disturbances such as homonymous hemianopia or cortical blindness. Motor weakness and facial droop are more commonly associated with middle cerebral artery involvement. Isolated loss of taste is rare and not a primary feature of PCA stroke. Recognition of vascular territories is essential for accurate neurological localization.