A nurse is caring for a client who has been diagnosed with heparin-induced thrombocytopenia (HIT). Which of the following clinical manifestations should the nurse recognize as the most concerning for a client with this condition?
Petechiae on the oral mucosa.
Hemoglobin of 14 g/dL.
Bleeding of the gums after oral care.
Pain and swelling in one leg.
The Correct Answer is D
A. Petechiae are tiny, pinpoint, red or purple spots on the skin or mucous membranes, caused by bleeding under the skin. While petechiae can indicate bleeding, they are not specific to HIT and can occur due to various reasons, including low platelet count or coagulation disorders. They do not necessarily indicate thrombotic complications associated with HIT.
B. This hemoglobin level is within the normal range for adults and does not directly correlate with HIT. However, it is important to monitor hemoglobin levels in patients with HIT due to the risk of bleeding and thrombosis.
C. Bleeding gums can occur due to various reasons, including gum disease or thrombocytopenia (low platelet count). In HIT, the concern is not just bleeding but also the paradoxical risk of thrombosis despite low platelet counts. Bleeding from mucosal surfaces can indicate underlying thrombocytopenia but does not specifically highlight the thrombotic risk of HIT.
D. This symptom is concerning for deep vein thrombosis (DVT), which is a thrombotic complication associated with HIT. HIT predisposes patients to thrombosis due to the formation of antibodies against
platelet factor 4/heparin complexes, leading to platelet activation and clot formation. DVT is a serious complication that requires immediate intervention to prevent pulmonary embolism (PE).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Fluticasone is an inhaled corticosteroid used primarily for maintenance therapy in COPD and asthma. It helps reduce airway inflammation and prevent exacerbations but is not used for immediate relief of acute symptoms such as bronchospasm or sudden shortness of breath.
B. Fluticasone, like other corticosteroids delivered by inhalation, can increase the risk of oral thrush (candidiasis) due to its local immunosuppressive effects in the mouth. It's important for clients to monitor their oral cavity regularly for signs such as white patches or soreness. Including this instruction is crucial to detect thrush early so that appropriate treatment can be initiated if necessary.
C. Monitoring heart rate is not specifically necessary before each dose of fluticasone. Fluticasone is not known to cause significant cardiovascular effects such as changes in heart rate. Heart rate monitoring may be more relevant for medications that can affect cardiovascular function or in clients with pre- existing cardiac conditions.
D. Fluticasone should be used regularly as prescribed for maintenance therapy to control airway inflammation and prevent exacerbations in COPD. Skipping doses, even if symptoms are not present, can lead to inadequate control of the disease and potential worsening of symptoms over time.
Correct Answer is D
Explanation
A. Dopamine is primarily associated with other neurodegenerative disorders such as Parkinson's disease, not Alzheimer's disease. In Alzheimer's disease, the focus is on changes related to beta-amyloid plaques and neurofibrillary tangles rather than alterations in dopamine levels.
B. Glial cells, including astrocytes and microglia, play a role in the brain's immune response and support of neurons. In Alzheimer's disease, there is evidence of increased activation and proliferation of glial cells in response to neuroinflammation and the presence of beta-amyloid plaques and neurofibrillary tangles. This reactive gliosis is a secondary response to the underlying pathology.
C. Glutamate is an excitatory neurotransmitter involved in various brain functions, including memory and learning. In Alzheimer's disease, there is evidence of dysregulation in glutamate metabolism and
signaling pathways. This dysregulation can lead to excitotoxicity, which contributes to neuronal damage and cell death seen in the disease.
D. Neurofibrillary tangles are one of the hallmark pathological features of Alzheimer's disease. These tangles are aggregates of hyperphosphorylated tau protein that accumulate inside neurons, disrupting their normal functioning and eventually leading to cell death. Neurofibrillary tangles, along with beta- amyloid plaques, contribute to the progressive cognitive decline observed in Alzheimer's disease.
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