66. Mr. Y has just admitted, a 50.-years-old male client who has a serum B12 concentration of 700mg/ml Which of the following laboratory findings would cue the nurse to focus the client's history on the specific drug or alcohol abuse? A. Folate, 1.5ng/ml C. Serum creatinine, 0.5mg/dl B. Hemoglobin, 16g/dl D. Total bilirubin 0.3mg/dl 67. A 44-year-old man come to your office bringing his male infant who is bleeding . You suspected that the infant is having hemophilia. Which laboratory test will be abnormal and more indicative of the disease you suspected? A. Bleeding time B. Clot retraction test C. Partial thromboplastin time D. Hemoglobin level 68. You are assessing an electrocardiogram rhythm strip. The P waves and QRS complexes are regular. The PR interval is 0.16 seconds, and ORS complexes measure 0.06 seconds. The overall heart rate is 65 beats per minute . What will the interpretation result of cardiac rhythm be? A. First-degree heart block C. Sick sinus syndrome B. Normal sinus rhythm D. Sinus bradycardia 69. You are caring for a patient who has been diagnosed with a myocardial infraction?The client is experiencing symptoms of myocardial infarction . What will your first intervention be for this patient? A. Getting an ECG result C. Oxygen administration B. Morphine administration D. Sublingual nitroglycerin administration 70. Ms.X is caring for a patient with heart failure. She has taught the patient about all medications used for heart failure treatment . After 2 hrs. she asked the patient which classes of medications maximize her cardiac performance by increasing ventricular contractility. Which answer given by the patient is correct? A. Beta-adrenergic blockers C. Diuretics B. Calcium channel blockers D. Inotropic agents 71. The nurse assessing a client suspects acute renal failure. Which investigation is confirmatory? An A. An elevated potassium level B. An elevated creatinine level C. An elevated BUN level D. Anelevated pH level

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66. Mr. Y has just admitted, a 50.-years-old male client who has a serum B12 concentration of 700mg/ml Which of the following laboratory findings would cue the nurse to focus the client's history on the specific drug or alcohol abuse? A. Folate, 1.5ng/ml C. Serum creatinine, 0.5mg/dl B. Hemoglobin, 16g/dl D. Total bilirubin 0.3mg/dl 67. A 44-year-old man come to your office bringing his male infant who is bleeding . You suspected that the infant is having hemophilia. Which laboratory test will be abnormal and more indicative of the disease you suspected? A. Bleeding time B. Clot retraction test C. Partial thromboplastin time D. Hemoglobin level 68. You are assessing an electrocardiogram rhythm strip. The P waves and QRS complexes are regular. The PR interval is 0.16 seconds, and ORS complexes measure 0.06 seconds. The overall heart rate is 65 beats per minute . What will the interpretation result of cardiac rhythm be? A. First-degree heart block C. Sick sinus syndrome B. Normal sinus rhythm D. Sinus bradycardia 69. You are caring for a patient who has been diagnosed with a myocardial infraction?The client is experiencing symptoms of myocardial infarction . What will your first intervention be for this patient? A. Getting an ECG result C. Oxygen administration B. Morphine administration D. Sublingual nitroglycerin administration 70. Ms.X is caring for a patient with heart failure. She has taught the patient about all medications used for heart failure treatment . After 2 hrs. she asked the patient which classes of medications maximize her cardiac performance by increasing ventricular contractility. Which answer given by the patient is correct? A. Beta-adrenergic blockers C. Diuretics B. Calcium channel blockers D. Inotropic agents 71. The nurse assessing a client suspects acute renal failure. Which investigation is confirmatory? An A. An elevated potassium level B. An elevated creatinine level C. An elevated BUN level D. Anelevated pH level

Answer 1

66. The correct answer is B. Hemoglobin,

. A serum B12 concentration of

is significantly elevated and can lead to megaloblastic anemia, which is characterized by large, immature red blood cells. This can result in an elevated hemoglobin level. Folate levels (option A) may also be elevated in megaloblastic anemia, but the question specifically asks for the laboratory finding that would cue the nurse to focus on drug or alcohol abuse. Serum creatinine (option C) and total bilirubin (option D) are not directly related to megaloblastic anemia or drug/alcohol abuse.67. The correct answer is C. Partial thromboplastin time. Hemophilia is a bleeding disorder caused by a deficiency in clotting factors, which can be detected by an abnormal partial thromboplastin time (PTT) test. Bleeding time (option A) is a screening test for platelet disorders, clot retraction test (option B) measures the ability of platelets to contract and form a clot, and hemoglobin level (option D) measures the amount of hemoglobin in the blood.68. The correct answer is B. Normal sinus rhythm. The PR interval of 0.16 seconds and QRS complexes measuring 0.06 seconds are within normal ranges. A heart rate of 65 beats per minute is also considered normal. First-degree heart block (option A) is characterized by a prolonged PR interval, sick sinus syndrome (option C) is a group of heart rhythm disorders, and sinus bradycardia (option D) is a slower than normal heart rate.69. The correct answer is C. Oxygen administration. In a patient experiencing symptoms of myocardial infarction, the first intervention should be to administer oxygen to ensure adequate oxygenation of the tissues. Getting an ECG result (option A) is important for diagnosing the location and extent of the infarction, but it is not the first intervention. Morphine administration (option B) and sublingual nitroglycerin administration (option D) are also important interventions, but oxygen administration takes precedence.70. The correct answer is D. Inotropic agents. Inotropic agents, such as dobutamine, are medications that increase the contractility of the heart and are used to treat heart failure. Beta-adrenergic blockers (option A) decrease the heart rate and contractility, diuretics (option C) help remove excess fluid from the body, and calcium channel blockers (option B) relax the blood vessels.71. The correct answer is B. An elevated creatinine level. Acute renal failure is characterized by a sudden decline in kidney function, which can be confirmed by an elevated creatinine level. An elevated potassium level (option A) can also indicate renal failure, but it is not as specific as an elevated creatinine level. An elevated BUN level (option C) can also indicate renal failure, but it is not as specific as an elevated creatinine level. An elevated pH level (option D) is not a specific indicator of renal failure.

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