A nurse is reviewing a client's laboratory results. The client's ABGS are as follows: pH 7.6, HCO3 24 mEq/L, PaCO2 30 mm Hg, PaO2 90 mm Hg. Which of the following acid-base imbalances should the nurse identify the client is experiencing?
Metabolic alkalosis
Respiratory acidosis
Respiratory alkalosis
Metabolic acidosis
The Correct Answer is C
A) Metabolic alkalosis: Metabolic alkalosis is characterized by a high pH and elevated bicarbonate (HCO3). In this scenario, the pH is elevated at 7.6, which supports alkalosis, but the HCO3 level is normal at 24 mEq/L. The PaCO2 is slightly low, which is not typical for metabolic alkalosis, as it would usually show an elevated HCO3 with a compensatory respiratory alkalosis.
B) Respiratory acidosis: Respiratory acidosis would present with a low pH and an elevated PaCO2. In this case, the pH is high at 7.6, indicating alkalosis, and the PaCO2 is also low at 30 mm Hg, which is inconsistent with respiratory acidosis.
C) Respiratory alkalosis: Respiratory alkalosis is indicated by a high pH with a low PaCO2. Here, the pH is elevated at 7.6, and the PaCO2 is decreased at 30 mm Hg, which fits the profile of respiratory alkalosis. The normal HCO3 level suggests that the bicarbonate is not compensating, supporting a primary respiratory alkalosis.
D) Metabolic acidosis: Metabolic acidosis is characterized by a low pH and a low HCO3. In this scenario, the pH is elevated at 7.6, and the HCO3 level is normal at 24 mEq/L, which does not align with metabolic acidosis. The PaCO2 is also low, which is not typical for metabolic acidosis, as it would usually have a normal or high PaCO2.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","C","E"]
Explanation
A) Urticaria:
Urticaria, or hives, is a skin reaction characterized by itchy, raised welts. It is not typically associated with a small bowel obstruction, which primarily affects the gastrointestinal system rather than the skin.
B) Vomiting:
Vomiting is a common symptom of a complete small bowel obstruction. It occurs due to the blockage in the intestines, which prevents the passage of contents, leading to nausea and vomiting as the body tries to expel the obstruction.
C) Distended abdomen:
A distended abdomen is expected in cases of small bowel obstruction. The blockage causes a buildup of gas and fluids, leading to abdominal swelling and distention as the normal passage of intestinal contents is impeded.
D) Fluid overload:
Fluid overload is not a typical manifestation of a small bowel obstruction. Instead, dehydration and electrolyte imbalances are more likely due to vomiting and the inability to absorb fluids and nutrients properly.
E) Obstipation:
Obstipation, or severe constipation with an inability to pass stool or gas, is a key sign of a complete small bowel obstruction. The obstruction prevents the normal movement of intestinal contents, leading to a cessation of bowel movements.
Correct Answer is D
Explanation
A) Expect optimum visual acuity to return in 4 to 6 weeks: While some improvement in vision can be noted soon after cataract surgery, optimal visual acuity typically returns within 1 to 2 months. It's important to set realistic expectations for recovery. Telling the patient to expect optimum visual acuity to return in 4 to 6 weeks provides a more accurate timeframe for complete visual recovery.
B) Notify the provider if new floaters persist for more than 3 days: The presence of new floaters can be a sign of complications such as retinal detachment or vitreous hemorrhage. However, patients are generally advised to notify their provider immediately if they notice any new floaters, flashes of light, or a sudden decrease in vision, rather than waiting for three days. Immediate notification can lead to prompt evaluation and treatment if necessary.
C) Take aspirin every 4 to 6 hr for mild discomfort: Aspirin is generally avoided postoperatively due to its blood-thinning properties, which can increase the risk of bleeding. Instead, non-aspirin pain relievers like acetaminophen are usually recommended to manage mild discomfort after cataract surgery, as they do not carry the same risk of bleeding complications.
D) Avoid lifting objects that weigh 9.07 kg (20 lb) or more: Patients are advised to avoid lifting heavy objects and engaging in strenuous activities after cataract surgery to prevent increased intraocular pressure, which can interfere with healing and potentially cause complications such as bleeding or dislocation of the intraocular lens. This instruction helps ensure the safety and proper healing of the surgical site.
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