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1. A patient with chronic heart failure is prescribed carvedilol. What is the primary purpose of this medication?
- A. Increase cardiac output
- B. Reduce fluid retention
- C. Decrease heart rate
- D. Lower blood pressure
Correct answer: C
Rationale: Carvedilol, a beta-blocker, is primarily prescribed in patients with chronic heart failure to decrease heart rate and reduce the workload on the heart. By lowering the heart rate, carvedilol helps the heart function more efficiently and improves symptoms in patients with heart failure.
2. A client with acute pancreatitis is admitted to the hospital. What is the priority nursing intervention for this client?
- A. Administering oral pancreatic enzymes
- B. Encouraging a high-protein diet
- C. Maintaining NPO status and administering IV fluids
- D. Providing a low-fat diet
Correct answer: C
Rationale: The priority nursing intervention for a client with acute pancreatitis is to maintain NPO (nothing by mouth) status and administer IV fluids. This approach helps rest the pancreas, decrease pancreatic stimulation, and prevent further exacerbation of the condition. By withholding oral intake and providing IV fluids, the pancreas is given the opportunity to recover and inflammation can be reduced. This intervention is crucial in the acute phase of pancreatitis to support the healing process and prevent complications.
3. A 30-year-old woman presents with fatigue, polyuria, and polydipsia. Laboratory tests reveal hyperglycemia and ketonuria. What is the most likely diagnosis?
- A. Type 1 diabetes mellitus
- B. Type 2 diabetes mellitus
- C. Diabetes insipidus
- D. Hyperthyroidism
Correct answer: A
Rationale: The clinical presentation of a 30-year-old woman with fatigue, polyuria, polydipsia, hyperglycemia, and ketonuria is highly suggestive of type 1 diabetes mellitus. Type 1 diabetes mellitus is characterized by autoimmune destruction of pancreatic beta cells, leading to insulin deficiency and subsequent hyperglycemia. The presence of ketonuria indicates the breakdown of fats for energy due to the lack of insulin. In contrast, type 2 diabetes mellitus typically presents with gradual onset and is often associated with insulin resistance rather than absolute insulin deficiency. Diabetes insipidus is characterized by polyuria and polydipsia but is not associated with hyperglycemia or ketonuria. Hyperthyroidism may present with symptoms like fatigue but does not typically cause hyperglycemia or ketonuria.
4. A patient with chronic kidney disease (CKD) is prescribed erythropoietin. What is the primary action of this medication?
- A. Stimulate white blood cell production
- B. Increase platelet count
- C. Promote red blood cell production
- D. Enhance clotting factor production
Correct answer: C
Rationale: Erythropoietin primarily stimulates the bone marrow to produce more red blood cells, which helps to improve oxygen delivery to tissues. In chronic kidney disease, patients often develop anemia due to reduced erythropoietin production by the kidneys. By administering exogenous erythropoietin, the deficient hormone is replaced, leading to an increase in red blood cell production and subsequently improving the oxygen-carrying capacity of the blood.
5. The mother of a 9-month-old who was diagnosed with respiratory syncytial virus (RSV) yesterday calls the clinic to inquire if it will be all right to take her infant to the first birthday party of a friend's child the following day. What response should the nurse provide this mother?
- A. The child can be around other children but should wear a mask at all times.
- B. The child will no longer be contagious, no need to take any further precautions.
- C. Make sure there are no children under the age of 6 months around the infected child.
- D. Do not expose other children. RSV is very contagious even without direct oral contact.
Correct answer: D
Rationale: The correct response is to advise the mother not to expose other children to the infected child. RSV is highly contagious, and transmission can occur even without direct oral contact. It is crucial to prevent the spread of the virus to protect other children from getting infected.
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