Nokea
A client receiving warfarin (Coumadin) therapy should have which of the following laboratory results reviewed to evaluate the effectiveness of the therapy?
- A. Complete blood count (CBC).
- B. Prothrombin time (PT).
- C. International normalized ratio (INR).
- D. Partial thromboplastin time (PTT).
Correct Answer: C
Rationale: The correct answer is C: International normalized ratio (INR). The INR is the most appropriate laboratory result to review when evaluating the effectiveness of warfarin (Coumadin) therapy. Warfarin is an anticoagulant medication, and the INR helps determine if the dosage is within a therapeutic range to prevent clotting or bleeding complications. Choice A, a Complete Blood Count (CBC), provides information about the cellular components of blood but does not directly assess the anticoagulant effects of warfarin. Choice B, Prothrombin time (PT), measures the time it takes for blood to clot but is not as specific for monitoring warfarin therapy as the INR. Choice D, Partial Thromboplastin Time (PTT), evaluates the intrinsic pathway of coagulation and is not the primary test used to monitor warfarin therapy.
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The client with type 1 diabetes mellitus is taught to take isophane insulin suspension NPH (Humulin N) at 5 PM each day. The client should be instructed that the greatest risk of hypoglycemia will occur at about what time?
- A. 11 AM, shortly before lunch.
- B. 1 PM, shortly after lunch.
- C. 6 PM, shortly after dinner.
- D. 1 AM, while sleeping.
Correct Answer: D
Rationale: The correct answer is D, 1 AM, while sleeping. Isophane insulin suspension NPH (Humulin N) peaks around 6-8 hours after administration, which increases the risk of hypoglycemia during the night. Choice A, 11 AM, shortly before lunch, is incorrect because the peak effect of NPH insulin occurs much later. Choice B, 1 PM, shortly after lunch, is incorrect as it is too early for the peak effect of NPH insulin. Choice C, 6 PM, shortly after dinner, is also incorrect because the peak risk of hypoglycemia with NPH insulin occurs later in the night.
What is the most common cause of peptic ulcers?
- A. Helicobacter pylori infection
- B. NSAID use
- C. Excessive alcohol consumption
- D. Stress
Correct Answer: A
Rationale: Helicobacter pylori infection is the most common cause of peptic ulcers. This bacterium can weaken the protective mucous coating of the stomach and duodenum, allowing acid to get through to the sensitive lining beneath. NSAID use (Choice B) can also cause peptic ulcers by disrupting the stomach's mucosal barrier. Excessive alcohol consumption (Choice C) and stress (Choice D) can exacerbate and contribute to ulcer formation but are not the primary cause.
The nurse is assessing an older adult with a pacemaker who leads a sedentary lifestyle. The client reports being unable to perform activities that require physical exertion. The nurse should further assess the client for which of the following?
- A. Left ventricular atrophy.
- B. Irregular heartbeats.
- C. Peripheral vascular occlusion.
- D. Pacemaker function.
Correct Answer: A
Rationale: The correct answer is A: Left ventricular atrophy. Older adults who lead sedentary lifestyles are at risk of developing left ventricular atrophy, which can lead to decreased cardiac output during physical exertion. This condition can contribute to the client's inability to perform activities requiring physical exertion. Choice B, irregular heartbeats, may be a consideration due to the presence of a pacemaker, but the client's reported inability to perform physically exerting activities is more indicative of a structural issue like left ventricular atrophy rather than a rhythm-related problem. Peripheral vascular occlusion (Choice C) is less likely to be the cause of the client's symptoms compared to the cardiac-related issue of left ventricular atrophy. While assessing pacemaker function (Choice D) is important, the client's symptoms are more suggestive of a cardiac structural issue rather than a malfunction of the pacemaker.
A client is receiving Cilostazol (Pletal) for peripheral arterial disease causing intermittent claudication. The nurse determines this medication is effective when the client reports which of the following?
- A. I am having fewer aches and pains.
- B. I do not have headaches anymore.
- C. I am able to walk further without leg pain.
- D. My toes are turning grayish black in color.
Correct Answer: C
Rationale: The correct answer is C. Cilostazol improves blood flow to the muscles, which helps alleviate symptoms of intermittent claudication. An improvement in walking distance without leg pain indicates the effectiveness of the medication. Choices A and B are not directly related to the expected outcome of Cilostazol therapy for intermittent claudication. Choice D is concerning for a potential adverse effect and should be reported to the healthcare provider immediately.
The nurse is obtaining the admission history for a client with suspected peptic ulcer disease (PUD). Which subjective data reported by the client supports this diagnosis?
- A. Frequent use of chewable and liquid antacids for indigestion
- B. Severe abdominal cramps and diarrhea after eating spicy foods
- C. Upper mid-abdominal gnawing and burning pain
- D. Marked weight loss and appetite over the last 3 to 4 months
Correct Answer: C
Rationale: The correct answer is C: 'Upper mid-abdominal gnawing and burning pain.' This symptom is a classic presentation of peptic ulcer disease. Antacids (choice A) may provide relief but do not confirm the diagnosis. Severe abdominal cramps and diarrhea (choice B) are more suggestive of other conditions like irritable bowel syndrome. Weight loss and appetite changes (choice D) are non-specific and could be related to various health issues.