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A patient is diagnosed with Mycoplasma pneumonia. Which antibiotic will the nurse expect the provider to order to treat this infection?
- A. Azithromycin (Zithromax)
- B. Clarithromycin (Biaxin)
- C. Erythromycin (E-Mycin)
- D. Fidaxomicin (Dificid)
Correct Answer: C
Rationale: Erythromycin is the drug of choice for treating Mycoplasma pneumonia. Mycoplasma pneumonia is typically sensitive to macrolide antibiotics, with erythromycin being one of the first-line agents. Azithromycin and clarithromycin are also effective in treating Mycoplasma pneumonia, but erythromycin is specifically mentioned as the drug of choice in this context. Fidaxomicin, on the other hand, is not indicated for the treatment of Mycoplasma pneumonia and is primarily used to treat Clostridium difficile infections.
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A client with renal insufficiency and a low red blood cell count asks, 'Is my anemia related to the renal insufficiency?' How should the nurse respond?
- A. Red blood cells produce erythropoietin, which increases blood flow to the kidneys.
- B. Your anemia and renal insufficiency are related to inadequate vitamin D and a loss of bone density.
- C. Erythropoietin is usually released from the kidneys and stimulates red blood cell production in the bone marrow.
- D. Kidney insufficiency inhibits active transportation of red blood cells throughout the blood.
Correct Answer: C
Rationale: The correct answer is C. Erythropoietin is produced in the kidney and is released in response to decreased oxygen tension in the renal blood supply. Erythropoietin stimulates red blood cell production in the bone marrow. Anemia in renal insufficiency is often due to decreased erythropoietin production. Anemia and renal insufficiency are not manifestations of vitamin D deficiency as stated in choice B. Choice A is incorrect as erythropoietin does not increase blood flow to the kidneys. Choice D is incorrect because kidney insufficiency does not inhibit active transportation of red blood cells throughout the blood; rather, it affects erythropoietin production and subsequent red blood cell formation.
A client is experiencing diarrhea. For which acid-base disorder should the nurse assess the client?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct Answer: A
Rationale: When a client experiences diarrhea, the loss of bicarbonate-rich fluids from the body leads to a decrease in the bicarbonate levels in the blood, resulting in metabolic acidosis. Metabolic alkalosis (choice B) is characterized by an increase in bicarbonate levels, which is not typically associated with diarrhea. Respiratory acidosis (choice C) is caused by retention of carbon dioxide, while respiratory alkalosis (choice D) results from excessive exhalation of carbon dioxide, neither of which are directly related to diarrhea. Therefore, the correct answer is metabolic acidosis (choice A) in the context of diarrhea.
A client with renal calculi is being assessed by a nurse. Which question should the nurse ask?
- A. Is there a family history of this problem?
- B. Do you consume cranberry juice?
- C. Do you urinate after sexual intercourse?
- D. Do you have burning sensation during urination?
Correct Answer: A
Rationale: When assessing a client with renal calculi, it is important for the nurse to inquire about a family history of the problem. There is a genetic predisposition associated with renal stone formation, making it essential to assess if other family members have experienced renal stones. Choices B, C, and D are not directly related to renal calculi. Consuming cranberry juice is more relevant to urinary tract health, urinating after sexual intercourse is related to preventing urinary tract infections, and experiencing a burning sensation during urination is a symptom commonly associated with urinary tract infections, not renal calculi.
A healthcare professional is reviewing laboratory results for a client who is at risk for nephrotoxicity due to medications. Which of the following serum creatinine results does the healthcare professional document as normal?
- A. 0.2 mg/dL
- B. 1.0 mg/dL
- C. 2.8 mg/dL
- D. 3.9 mg/dL
Correct Answer: B
Rationale: The normal serum creatinine level typically ranges from 0.6 to 1.3 mg/dL. A result of 1.0 mg/dL falls within this normal range. A serum creatinine level of 0.2 mg/dL is abnormally low and may indicate decreased muscle mass or malnutrition. On the other hand, results of 2.8 mg/dL and 3.9 mg/dL are elevated, signifying impaired kidney function and potential nephrotoxicity from medications.
A client with a history of lung disease is at risk for respiratory acidosis. For which of the following signs and symptoms does the nurse assess this client?
- A. Disorientation and dyspnea
- B. Drowsiness, headache, and tachypnea
- C. Tachypnea, dizziness, and paresthesias
- D. Dysrhythmias and decreased respiratory rate and depth
Correct Answer: A
Rationale: The correct answer is A: Disorientation and dyspnea. In respiratory acidosis, the retention of carbon dioxide leads to an increase in carbonic acid, causing the pH of the blood to decrease. This can result in symptoms such as dyspnea (difficulty breathing) due to hypoxia and disorientation due to the effects of hypercapnia (elevated carbon dioxide levels) on the brain. Choice B is incorrect because while drowsiness and tachypnea can be present in respiratory acidosis, headache is not a common symptom. Choice C is incorrect because dizziness and paresthesias are not typical symptoms of respiratory acidosis. Choice D is incorrect because dysrhythmias and a decreased respiratory rate and depth are more commonly associated with respiratory alkalosis, not respiratory acidosis.