19. PET scan results indicate a tangled mass of nonfunctioning neurons replaced by senile plaques. Progress notes indicate deterioration of judgment, emotional detachment, and sleep disturbance.
The etiology is noted to be a genetic mutation. Which condition is reflected in this patient's record?
Parkinson disease
Senile dementia
Epileptic seizure
Alzheimer disease
The Correct Answer is D
Alzheimer disease is a progressive neurodegenerative disorder that affects memory, cognition, behavior, and daily functioning. Alzheimer disease is characterized by the accumulation of amyloid-beta plaques and neurofibrillary tangles in the brain, which impair the communication and survival of neurons. Alzheimer disease is influenced by genetic and environmental factors, and some rare forms of the disease are caused by mutations in specific genes.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Spina bifida is a birth defect that occurs when the neural tube, which forms the brain and spinal cord, does not close properly during early fetal development. This can result in an opening in the spine that exposes the spinal cord and nerves, leading to various complications such as paralysis, bladder and bowel problems, hydrocephalus, and learning difficulties. Folic acid is a B vitamin that is essential for the formation of the neural tube and other organs in the embryo. Inadequate folic acid intake before and during pregnancy can increase the risk of spina bifida and other neural tube defects.
Correct Answer is A
Explanation
A. Correct. Checking the pH of the gastric aspirate is the most reliable method to verify the correct placement of the NG tube. Gastric aspirate typically has an acidic pH (pH < 5), indicating that the tube is in the stomach.
B. Observing the color of the gastric aspirate after adding blue dye to the formula is not a standard or recommended method for verifying NG tube placement.
C. Auscultating over the epigastrium may help to identify the presence of air in the stomach, but it does not confirm that the NG tube is correctly placed in the stomach or the intestines.
D. Measuring the length of the inserted NG tube can help determine the distance from the nose to the stomach, but it does not ensure correct placement in the stomach.
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