What condition does the nurse suspect when a patient involved in a motor vehicle accident arrives at the emergency department with ecchymosis behind the ears and bleeding from the ears?
Epidural hematoma.
Ischemic stroke.
Subarachnoid hemorrhage.
Basilar skull fracture.
The Correct Answer is D
Choice A reason: An epidural hematoma is a type of traumatic brain injury where blood accumulates between the dura mater and the skull. While it can cause severe symptoms, including headache, loss of consciousness, and neurological deficits, it does not typically present with ecchymosis behind the ears (Battle's sign) or bleeding from the ears. These signs are more indicative of a basilar skull fracture.
Choice B reason: An ischemic stroke occurs when a blood clot blocks or narrows an artery leading to the brain, causing reduced blood flow and oxygen to the brain tissue. Symptoms of an ischemic stroke include sudden weakness, numbness, difficulty speaking, and vision problems. However, it does not cause ecchymosis behind the ears or bleeding from the ears, which are specific signs of a basilar skull fracture.
Choice C reason: A subarachnoid hemorrhage is bleeding into the space between the brain and the tissue covering the brain (subarachnoid space). It often presents with a sudden, severe headache, nausea, vomiting, and loss of consciousness. While it is a serious condition, it does not typically cause ecchymosis behind the ears or bleeding from the ears.
Choice D reason: A basilar skull fracture is
The correct answer. This type of fracture involves the base of the skull and can cause characteristic signs such as ecchymosis behind the ears (Battle's sign) and bleeding from the ears due to the proximity of the fracture to the auditory canal and other structures. These symptoms are key indicators of a basilar skull fracture and require immediate medical attention.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Hepatomegaly, or enlarged liver, is not a typical finding in DIC. While DIC can affect multiple organs due to widespread microvascular thrombosis and bleeding, hepatomegaly is more commonly associated with other conditions such as liver diseases or congestive heart failure.
Choice B reason: Splenomegaly, or enlarged spleen, is also not a common finding in DIC. Although the spleen can be involved in various hematologic disorders, DIC primarily affects the coagulation and fibrinolytic systems, leading to bleeding and clotting issues rather than spleen enlargement.
Choice C reason: Anuria, or absence of urine production, can occur in severe cases of DIC due to acute kidney injury from microvascular thrombosis or bleeding. However, it is not as common a finding as petechiae, bleeding gums, and ecchymosis. Anuria indicates a critical state requiring immediate intervention but is not the primary expected finding in DIC.
Choice D reason: Ecchymosis, or bruising, is a common finding in DIC. DIC involves widespread activation of the coagulation cascade leading to the consumption of clotting factors and platelets, resulting in bleeding manifestations such as petechiae, bleeding gums, and ecchymosis. These signs indicate the body's inability to form stable clots and the presence of spontaneous bleeding.
Correct Answer is A
Explanation
Choice A reason: Blood clots form more easily in mechanical replacement valves due to the artificial surface of the valve, which can cause the blood to clot more readily. This increases the risk of thromboembolic events, such as stroke or valve obstruction. Therefore, patients with mechanical valves need to take anticoagulants for life to prevent clot formation and ensure the valve functions effectively.
Choice B reason: The statement that the vein taken from the leg reduces circulation in the leg is incorrect in this context. Vein grafts from the leg are typically used in coronary artery bypass grafting (CABG) surgery, not in valve replacement surgery. Therefore, this explanation does not apply to the patient's situation of needing anticoagulants after valve replacement surgery.
Choice C reason: The idea that the valve replacement surgery left a lot of small clots in the heart and lungs is not accurate. The surgery itself does not leave clots; rather, the ongoing risk of clot formation is due to the presence of the mechanical valve. This risk necessitates lifelong anticoagulation.
Choice D reason: The mechanical valve does not place the patient at a greater risk for a heart attack specifically. The concern with mechanical valves is the increased risk of blood clot formation, which is why anticoagulants are prescribed. Heart attacks are typically caused by blockages in the coronary arteries, which is a different issue.
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