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 D
Explanation
A. ALS is not caused by a virus or inflammation of the nerves. It is a progressive neurodegenerative disease affecting the motor neurons in the brain and spinal cord.
B. While acetylcholine breakdown is involved in other neurological conditions (such as myasthenia gravis), ALS primarily affects motor neurons and does not directly involve acetylcholine metabolism at the neuromuscular junction.
C. ALS does not typically involve significant inflammation or demyelination (which is more characteristic of conditions like multiple sclerosis). Therefore, reducing CNS inflammation is not a therapeutic target in ALS.
D. Riluzole, the medication prescribed for ALS, works by decreasing the release of glutamate, which is a neurotransmitter that can be toxic to nerve cells in high amounts. In ALS, excessive glutamate release is believed to contribute to motor neuron degeneration. By reducing glutamate release, riluzole may help protect motor neurons and slow the progression of the disease.
Correct Answer is A
Explanation
A. This option is appropriate because the client's low white blood cell count (3,100/mm³) suggests they are at risk for infection due to chemotherapy-induced immunosuppression. Using an electric shaver reduces the risk of cuts and nicks that could potentially lead to infections.
B. This option is not necessary based on the client's current lab results. Negative pressure isolation rooms are typically reserved for clients with severely compromised immune systems, such as those with very low neutrophil counts (neutropenia). A white blood cell count of 3,100/mm³ is within a range where standard precautions are usually sufficient.
C. This option addresses food safety precautions for clients with neutropenia (low white blood cell count). Raw vegetables, including salads, have a higher risk of harboring bacteria that could cause infections. Therefore, cooked vegetables are safer for clients with compromised immune systems.
D. This option is appropriate because chemotherapy-induced thrombocytopenia (low platelet count of 280,000/mm³) increases the risk of bleeding. Forceful blowing of the nose can traumatize the nasal mucosa and increase the risk of nosebleeds. Dabbing the nose gently is a safer method to avoid nosebleeds.
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