A nurse is teaching a client scheduled for an activated partial thromboplastin time (aPTT). Which of the following statements by the client indicates an understanding of the teaching?
"This test will help my provider adjust my warfarin dosages."
"If my levels are too low, I am at an increased risk for bleeding."
"It measures deficiencies in clotting factors."
"I will need to skip breakfast until after the test is complete
The Correct Answer is C
A. "This test will help my provider adjust my warfarin dosages": aPTT is not typically used to monitor warfarin therapy. Instead, it is more commonly associated with monitoring heparin therapy.
B. "If my levels are too low, I am at an increased risk for bleeding": This statement is inaccurate. Low levels of clotting factors could lead to a prolonged aPTT, which might increase the risk of bleeding.
C. "It measures deficiencies in clotting factors."
Activated partial thromboplastin time (aPTT) is a laboratory test that evaluates the intrinsic pathway of the coagulation cascade. The aPTT measures the time it takes for a clot to form and reflects the activity of various clotting factors, including factors VIII, IX, XI, and XII. An elevated aPTT may indicate a deficiency or dysfunction of one or more clotting factors.
D. "I will need to skip breakfast until after the test is complete": There is no need for the client to skip breakfast before an aPTT test. The test is not affected by food intake.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Cheyne-Stokes respirations: Cheyne-Stokes respirations are characterized by alternating periods of hyperventilation followed by apnea. This respiratory pattern is often observed in clients with conditions affecting the central nervous system, such as brain injury or stroke.
B. Apneustic respirations: Apneustic respirations are characterized by prolonged, gasping inhalations followed by extremely short, ineffective exhalations. This pattern is associated with damage to the pons, a part of the brainstem.
C. Stridor: Stridor is a high-pitched, noisy breathing sound caused by turbulent airflow through a partially obstructed airway. It is not related to the described alternating pattern of hyperventilation and apnea.
D. Kussmaul respirations: Kussmaul respirations are deep, rapid respirations often seen in metabolic acidosis. They are not characterized by the alternating pattern described in the scenario.
Correct Answer is A
Explanation
A. "These tests help determine the degree of damage to the heart tissues." - This is the correct statement. Cardiac enzyme studies, such as creatine kinase (CK), CK-MB, troponin I, and troponin T, are used to assess the extent of myocardial damage during an acute myocardial infarction (MI). Elevated levels of these enzymes indicate myocardial injury and help healthcare providers determine the severity of the heart tissue damage.
B. "Cardiac enzymes will identify the location of the MI." - While cardiac enzymes can confirm the presence of an MI, they do not specifically identify the location of the infarction. Other diagnostic tools, such as electrocardiogram (ECG) and imaging studies, may help determine the location of the MI.
C. "Cardiac enzymes assist in diagnosing the presence of pulmonary congestion." - Cardiac enzymes are not used to diagnose pulmonary congestion. Other diagnostic methods, such as chest X-rays and physical examination, are more appropriate for assessing pulmonary congestion.
D. "These tests will enable the provider to determine the heart structure and mobility of the heart valves." - Cardiac enzyme studies do not provide information about the overall heart structure or the mobility of heart valves. Imaging studies, such as echocardiography, are used for this purpose.
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