Susan, the nurse, is caring for a client who has DIC. Which of the following medications should the nurse anticipate administering?
Vitamin K
Statin
Heparin
Metformin
The Correct Answer is C
Choice A: Vitamin K
Vitamin K is essential for the synthesis of clotting factors and is often used to treat bleeding disorders caused by vitamin K deficiency or to reverse the effects of anticoagulants like warfarin. However, in the context of disseminated intravascular coagulation (DIC), the primary issue is not a deficiency of clotting factors but rather an overactivation of the clotting cascade leading to both clot formation and bleeding. Therefore, while vitamin K can be beneficial in certain bleeding disorders, it is not the primary treatment for DIC.
Choice B: Statin
Statins are medications used to lower cholesterol levels and reduce the risk of cardiovascular disease. They work by inhibiting the enzyme HMG-CoA reductase, which plays a crucial role in cholesterol synthesis. Statins are not used in the management of DIC as they do not address the underlying pathophysiology of the condition, which involves widespread clotting and subsequent bleeding.
Choice C: Heparin
Heparin is an anticoagulant that helps prevent the formation of new clots and the extension of existing clots. In the management of DIC, heparin can be used to interrupt the clotting process and prevent further consumption of clotting factors. This can help stabilize the patient and reduce the risk of severe bleeding. Heparin is particularly useful in cases where thrombosis is predominant. It is important to monitor the patient closely to balance the risk of bleeding with the benefits of anticoagulation.
Choice D: Metformin
Metformin is an oral hypoglycemic agent used to manage type 2 diabetes by improving insulin sensitivity and reducing glucose production in the liver. It has no role in the treatment of DIC, as it does not affect the coagulation pathways or the underlying causes of DIC.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C"]
Explanation
Choice A Reason:
First-degree heart block is a condition where the electrical signals in the heart are delayed but still reach the ventricles. It is generally considered benign and does not typically lead to heart failure. It is often asymptomatic and discovered incidentally on an ECG.
Choice B Reason:
Atrial fibrillation (AFib) is a common arrhythmia associated with heart failure. AFib causes the atria to beat irregularly and often rapidly, which can lead to poor blood flow and increased risk of stroke. In heart failure patients, AFib can exacerbate symptoms and worsen the prognosis due to the loss of atrial contraction and irregular ventricular response.
Choice C Reason:
Ventricular tachycardia (VT) is a serious arrhythmia that is often associated with heart failure. VT originates in the ventricles and can lead to hemodynamic instability and sudden cardiac death if not treated promptly. It is a common complication in patients with heart failure and cardiomyopathy.
Choice D Reason:
Sinus bradycardia is a slower than normal heart rate, typically less than 60 beats per minute. While it can occur in healthy individuals, especially athletes, it is not specifically associated with heart failure. In some cases, severe bradycardia can lead to symptoms of heart failure, but it is not a primary arrhythmia linked to the condition.
Correct Answer is D
Explanation
Choice A Reason:
Hypotension is not typically a direct manifestation of increased intracranial pressure (ICP). In fact, increased ICP often leads to hypertension as part of Cushing's triad, which includes hypertension, bradycardia, and irregular respiration. Hypotension may indicate other issues such as shock or blood loss but is not a primary indicator of increased ICP.
Choice B Reason:
Tachypnea, or rapid breathing, is not a primary sign of increased ICP. While respiratory changes can occur with increased ICP, they are more likely to present as irregular breathing patterns rather than simply an increased rate. Tachypnea might be seen in conditions like anxiety, pain, or respiratory distress but is not a hallmark of increased ICP.
Choice C Reason:
Bilateral weakness of extremities can occur with increased ICP, especially if there is significant brain swelling or herniation affecting motor pathways. However, it is not the most immediate or specific sign. Other neurological deficits can also cause bilateral weakness, so it is not solely indicative of increased ICP.
Choice D Reason:
Decreased level of consciousness is a critical and primary sign of increased ICP. As pressure within the skull rises, it can compress brain structures and impair function, leading to altered mental status ranging from confusion to coma. Monitoring the level of consciousness is essential in assessing and managing patients with potential increased ICP.
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