A nurse is assessing the reflexes of a client who has an unrepaired femur fracture and has suddenly become stuporous. For which of the following findings should the nurse identify that the client exhibits Babinski's sign?
Dorsiflexion of the great toe
Pronation of the arms
Pinpoint pupils
Jerking contractions of the head and neck
The Correct Answer is A
Choice A reason:
Babinski's sign is a neurological reflex that's tested by stroking the sole of the foot. A positive Babinski's sign, which is normal in infants but abnormal in adults, is indicated by dorsiflexion of the great toe (the toe points up) while the other toes fan out. This reflex suggests dysfunction of the corticospinal tract, which may be due to various neurological conditions. In the context of a stuporous patient with an unrepaired femur fracture, a positive Babinski's sign could indicate an acute neurological change possibly related to the injury or a secondary complication such as a fat embolism syndrome, which can occur after fractures and may affect the brain.
Choice B reason:
Pronation of the arms is not associated with Babinski's sign. Pronation is a rotational movement where the hand and upper arm are turned inwards. While arm movements are part of the neurological examination, they do not constitute a response to the plantar reflex test used to elicit Babinski's sign.
Choice C reason:
Pinpoint pupils may indicate opioid overdose or damage to the pons due to various causes, but they are not a component of Babinski's sign. Pupil size and reaction to light are important in neurological assessments, but they are separate from the reflexes tested by the Babinski sign.
Choice D reason:
Jerking contractions of the head and neck are not related to Babinski's sign. These could be indicative of seizure activity or other neurological disorders but are not a response to the plantar reflex test.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C"]
Explanation
The correct answer is b. Minimize skin exposure to moisture and c. Use pillows to keep heels off the bed surface.
Choice A reason:
a. Massage over erythematous bony prominences: This is incorrect because massaging erythematous (reddened) areas can cause further tissue damage and exacerbate skin breakdown.
Choice B reason:
b. Minimize skin exposure to moisture: This is correct. Moisture can lead to skin maceration, increasing the risk of skin breakdown. Keeping the skin dry helps maintain its integrity.
Choice C reason:
c. Use pillows to keep heels off the bed surface: This is correct. Elevating the heels reduces pressure on them, preventing pressure ulcers.
Choice D reason:
d. Implement a turning schedule every 4 hours: This is incorrect. To prevent pressure injuries, turning should be done every 2 hours, not every 4 hours.
Choice E reason:
e. Keep the client’s skin dry with powder: This is incorrect. Powder can cause skin irritation and breakdown.
Correct Answer is C
Explanation
Choice A reason:
Hay fever allergy, also known as allergic rhinitis, is primarily associated with the action of Immunoglobulin E (IgE) antibodies and not directly with T-cells. T-cells can contribute to the regulation of the immune response in allergies, but IgE is the main immunoglobulin involved in the typical symptoms of hay fever.
Choice B reason:
Anaphylaxis is a severe, potentially life-threatening allergic reaction that involves the release of large amounts of histamine and other chemicals from mast cells and basophils, often triggered by IgE antibodies. While T-cells can play a role in the sensitization phase of allergy, anaphylaxis itself is not directly caused by T-cells.
Choice C reason:
Transplant rejection is a process in which T-cells play a central role. When a transplant recipient's immune system recognizes the donated organ as foreign, T-cells can mediate the rejection by attacking the transplanted tissue, leading to its failure.
Choice D reason:
Bacterial phagocytosis is primarily the function of phagocytes like neutrophils and macrophages. T-cells are involved in the adaptive immune response and can activate phagocytes, but they do not directly perform phagocytosis.
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