A nurse is caring for a client who had a myocardial infarction and is receiving unfractionated heparin. Which of the following laboratory tests should the nurse monitor to assess the effectiveness of the medication?
HDL
HbA1c
aPTT
PT
The Correct Answer is C
Rationale:
A. High-density lipoprotein (HDL) is a lipid panel value used to assess cardiovascular risk over time, not to monitor anticoagulation therapy. It does not reflect the therapeutic effectiveness of heparin.
B. Hemoglobin A1c reflects long-term blood glucose control over approximately 2–3 months and is used in the management of diabetes mellitus. It has no role in monitoring heparin therapy.
C. Activated partial thromboplastin time (aPTT) is the primary laboratory test used to monitor the effectiveness of unfractionated heparin therapy. Heparin prolongs the intrinsic and common coagulation pathways, and the aPTT is used to ensure the client remains within the therapeutic range, typically 1.5 to 2.5 times the normal value, to prevent clot formation while minimizing bleeding risk.
D. Prothrombin time (PT) is used to monitor warfarin therapy, not heparin. PT assesses the extrinsic pathway of coagulation and is not the appropriate test for evaluating unfractionated heparin effectiveness.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["D","E","F","G","H"]
Explanation
Rationale:
A. Amniocentesis is not indicated in this situation. The client’s findings (hypertension, thrombocytopenia, elevated liver enzymes, proteinuria, hyperuricemia, and symptoms such as headache and RUQ pain) are consistent with severe preeclampsia with possible HELLP syndrome. Management focuses on maternal stabilization and possible delivery, not fetal lung maturity testing via amniocentesis.
B. Preeclampsia and HELLP syndrome are not infectious conditions. Standard precautions are appropriate, but contact precautions are unnecessary.
C. Internal fetal monitoring (e.g., fetal scalp electrode) requires ruptured membranes and sufficient cervical dilation, and it is typically avoided unless necessary. In a client with severe preeclampsia, the priority is maternal stabilization and noninvasive fetal monitoring unless labor is progressing.
D. The client has worsening hypertension (156/96 mm Hg) consistent with severe preeclampsia. Frequent blood pressure monitoring is essential to assess progression and guide antihypertensive therapy.
E. The client has severe preeclampsia with headache and hyperreflexia (3+ DTRs), indicating increased seizure risk. A quiet, low-stimulation environment helps reduce the risk of seizures.
F. Bed rest (typically left lateral positioning) helps improve uteroplacental perfusion and reduce blood pressure in clients with preeclampsia. Although strict bed rest is less commonly prescribed long-term, in acute severe cases hospitalization with limited activity is appropriate.
G. The client already has hyperreflexia (3+ DTRs), a warning sign of worsening CNS irritability and impending eclampsia. Ongoing monitoring is essential to detect progression.
H. The client has elevated creatinine and BUN, indicating possible renal involvement. Monitoring urine output helps assess kidney perfusion and detect worsening preeclampsia or renal impairment.
Correct Answer is C
Explanation
A. Contacting a provider to admit the client for inpatient care is not appropriate because there is no indication of acute complications or unstable blood glucose requiring hospitalization. Type 2 diabetes management goals are typically achieved in the outpatient setting unless there is an emergency such as diabetic ketoacidosis or severe hyperglycemia.
B. Contacting a nurse navigator for a referral to a diabetes support group may be helpful for emotional support and education, but it does not directly address structured goal-setting, ongoing monitoring, and coordinated long-term disease management needed for achieving clinical outcomes in type 2 diabetes.
C. Contacting a case manager to enroll the client in a disease management program is the correct action. Disease management programs provide coordinated, evidence-based care that includes monitoring, education, medication adherence support, and follow-up. This approach directly helps clients with chronic conditions like type 2 diabetes meet individualized goals such as glycemic control, lifestyle modification, and complication prevention.
D. Contacting a social worker for financial assistance with medications may be beneficial if cost is a barrier to care; however, it addresses only one aspect of care and does not provide comprehensive support for achieving clinical outcomes and long-term diabetes management goals.
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