A patient was involved in a fight and was hit in the head with a chair. The emergency room physician noted the following signs and symptoms:
A patient appears confused and does not remember being in a fight: the patient was brought in by a friend. The patient is having problems concentrating, dizziness, and flat affect. Which condition is indicated by the physician's findings?
Cerebral ischemia
Cerebral edema
Cerebral concussion
Cerebral hemorrhage
The Correct Answer is C
A cerebral concussion is a mild traumatic brain injury that occurs when a blow to the head causes the brain to move rapidly inside the skull, resulting in temporary changes in brain function. A concussion can cause confusion, memory loss, impaired concentration, dizziness, headache, nausea, blurred vision, and mood changes. Most concussions resolve within a few days or weeks with rest and monitoring.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is C
Explanation
Osmolarity is a measure of the concentration of solutes in a solution. When the osmolarity of the bloodstream increases due to blood loss, water will move from areas of lower osmolarity to areas of higher osmolarity by osmosis. This means that water will move from the extracellular fluid (the fluid outside the cells) to the intracellular fluid (the fluid inside the cells) to balance the osmotic pressure. As a result, the extracellular fluid volume will decrease and the intracellular fluid volume will increase, causing the cells to expand.
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