LPN exams cardiovascular practice questions set 4

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The correct answer is D because it demonstrates the patient's understanding of the appropriate action to take if chest pain persists after taking nitroglycerin. This response shows that the patient comprehends the importance of seeking immediate medical attention if the chest pain is not relieved by the medication. Explanation for why other choices are incorrect: A: Choice A is incorrect because nausea is not a common side effect of nitroglycerin. B: Choice B is incorrect as nitroglycerin is used to relieve chest pain during an angina attack, not just when chest pain is present. C: Choice C is incorrect as nitroglycerin works by dilating blood vessels to improve blood flow, not by preventing clot formation. In summary, choice D is correct as it reflects the patient's understanding of the appropriate action to take in case of persistent chest pain after taking nitroglycerin, while the other choices demonstrate misunderstandings about nitroglycerin use.

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The correct answer is D: Ristoectin cofactor activity. This patient's history of significant menstrual bleeding, epistaxis, and low hemoglobin suggests a congenital bleeding disorder. Ristoectin cofactor activity is a test for von Willebrand disease (VWD), a common inherited bleeding disorder characterized by a deficiency or dysfunction of von Willebrand factor. VWD typically presents with mucocutaneous bleeding, such as epistaxis and menorrhagia. Choice A: Factor XI level is not the most likely diagnosis as Factor XI deficiency (Hemophilia C) typically presents with bleeding after surgery or trauma, not mucocutaneous bleeding. Choice B: Factor X level is not the most likely diagnosis as Factor X deficiency presents with bleeding that is more severe and can cause hemarthrosis, not typically seen in this patient. Choice C: Factor XIII level is not the most likely diagnosis as Factor XIII deficiency leads to delayed wound healing and poor clot formation,

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The correct answer is A: Hold 1 to 2 doses of warfarin and recheck INR. In this scenario, the high INR indicates an increased risk of bleeding due to excess anticoagulation. However, since the patient is asymptomatic and the high INR is likely due to transient factors (gastrointestinal illness), the most appropriate initial step is to temporarily hold warfarin to allow the INR to normalize. Rechecking the INR after holding the doses will guide further management. Choice B (Administer oral vitamin K therapy) is incorrect because the patient is not experiencing bleeding symptoms and oral vitamin K should be reserved for patients with active bleeding or high INR with bleeding symptoms. Choice C (Administer fresh frozen plasma) is inappropriate as the patient is not actively bleeding and FFP is typically reserved for acute bleeding situations. Choice D (Administer recombinant factor VIIa) is also incorrect as it is reserved for severe bleeding in patients on war

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The correct answer is D: Reinforcement of teaching about the purpose of prescribed medications. This task is appropriate for delegation to an LPN/LVN because it involves reinforcing previously taught information to the patient, which does not require advanced assessment or critical thinking skills. LPN/LVNs are typically trained to provide education and reinforcement of information to patients under the supervision of an RN. Choice A is incorrect because evaluating the patient's response to walking in the hallway requires ongoing assessment and monitoring, which should be done by an RN. Choice B is incorrect as completing a referral form involves making decisions about follow-up care, which is beyond the scope of an LPN/LVN. Choice C is incorrect because educating the patient about the pathophysiology of heart disease requires a comprehensive understanding of the disease process and is best done by an RN or healthcare provider with advanced knowledge.

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The correct answer is D: Rapid schizonticidal activity. Artemisinin and its derivatives target the malaria parasite at the schizont stage, which is crucial for the parasite's replication and survival. By rapidly killing schizonts, these drugs help in controlling the infection and preventing severe complications. Choice A (Rapid gametocidal activity) is incorrect because artemisinin and its derivatives primarily target asexual stages of the parasite, not gametocytes. Choice B (The ability to prevent further development of hypnozoites) is incorrect as these drugs do not target the liver stages where hypnozoites develop. Choice C (Rapid sporontocidal activity) is incorrect as artemisinin derivatives do not primarily target the sexual stages of the parasite. In summary, the correct answer is D because of the drugs' effectiveness against the schizont stage, while the other choices are incorrect as they do not align with the mechanism of action of artemisinin

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The correct answer is D: Send a skin fibroblast culture for Fanconi anemia testing. This is the most important next step in management because the patient's family history, particularly the sister's unresponsiveness to ATG and cyclosporine and the cousin's history of leukemia, raises suspicion for Fanconi anemia. Testing for Fanconi anemia is crucial as it is an inherited bone marrow failure syndrome that predisposes individuals to aplastic anemia and leukemia. Skin fibroblast culture is the preferred test for diagnosing Fanconi anemia as it can detect chromosomal abnormalities indicative of the disease. Options A and B are not appropriate as the patient's sister did not respond to ATG and cyclosporine, and searching for a donor for transplant without confirming the underlying cause of aplastic anemia could lead to transplant failure. Option C is also not the best choice as the peripheral blood sample test for Fanconi anemia was already negative, and a skin fib

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The correct answer is C: Reduction of preload and afterload. Captopril, an ACE inhibitor, reduces preload (volume of blood returning to the heart) by inhibiting the conversion of angiotensin I to angiotensin II, which decreases aldosterone secretion and fluid retention. It also reduces afterload (resistance the heart has to pump against) by decreasing peripheral vascular resistance. This dual action helps improve cardiac output and decrease workload on the heart in systolic heart failure. Explanation for why the other choices are incorrect: A: Increased cardiac contractility - Captopril does not directly increase cardiac contractility, it mainly affects afterload and preload. B: Reduction of angiotensin-mediated vasoconstriction in the kidney - While captopril does inhibit angiotensin production, its primary mechanism of action is not specific to the kidney. D: Stimulation of epinephrine release from adrenergic nerves - Captopril does not stimulate ep

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Step 1: Whole milk is high in saturated fat and calories, contributing to excessive weight gain. Switching to 2 percent milk reduces fat intake. Step 2: Decreasing milk consumption and limiting fruit juice helps balance calorie intake and encourages the child to eat solid foods. Step 3: Offering water in between meals ensures hydration without additional calories. Step 4: Adjusting the child's diet in this manner promotes healthier eating habits and can help normalize weight-to-height percentile. In summary, option C is correct as it addresses the concerns of excessive milk and juice consumption while promoting a balanced diet. Options A, B, and D are incorrect because eliminating fruit juice alone may not address the overall calorie intake issue. Healthy snacks and creative presentation may not address the specific problem of excessive milk consumption. Increasing exercise alone may not directly impact the child's diet and weight-to-height percentile.

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The correct answer is B: Infiltration of leucocytes and phagocytic cells (phase of exudation). During the delayed, subacute phase of inflammation, infiltrating leukocytes, such as neutrophils and macrophages, play a crucial role in removing debris and pathogens. This phase is characterized by the migration of these cells to the site of injury, where they engulf and digest foreign substances. This process helps to clear the area of infection and promote tissue repair. Other choices are incorrect: A: Local vasodilatation and increased capillary permeability (phase of damage) - This describes the initial phase of inflammation, not the delayed subacute phase. C: Tissue degeneration and fibrosis occurrence (phase of proliferation) - This describes the later stages of inflammation involving tissue repair and remodeling, not the delayed subacute phase. D: All of the above - This is incorrect as choices A and C do not accurately describe the delayed, subacute

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The correct answer is B: Positive inotropic, negative chronotropic effect. Digoxin is a positive inotrope, meaning it increases the force of myocardial contraction, which helps improve cardiac output in heart failure. It has a negative chronotropic effect, meaning it decreases the heart rate by slowing down the electrical conduction in the heart, which can be beneficial in certain heart conditions. Choice A (Negative inotropic, negative chronotropic effect) is incorrect because digoxin is a positive inotrope, not a negative inotrope. Choice C (Negative inotropic, positive chronotropic effect) is incorrect because digoxin does not have a positive chronotropic effect. Choice D (Positive inotropic, positive chronotropic effect) is incorrect because digoxin has a negative chronotropic effect, not a positive one. Therefore, the correct choice is B due to the combination of positive inotropic effect and negative chronotropic effect of digoxin on the heart