Exhibits
Which other labs would be helpful for the treatment of diabetic ketoacidosis (DKA)? Select all that apply.
White blood cell differential
Hemoglobin A1C
Serum electrolytes
Urine culture
Anion gap
Urine ketones
Correct Answer : C,E,F
A. White blood cell differential. Although infection is a common precipitating factor for DKA, an elevated WBC count is common in DKA due to stress, dehydration, and inflammation rather than infection itself. While a WBC differential may be done if infection is suspected, it is not a primary test for DKA management.
B. Hemoglobin A1C. Hemoglobin A1C (HbA1c) reflects long-term glucose control (past 2-3 months) but does not provide immediate information about the current metabolic status or severity of DKA. While it may be useful in assessing overall diabetes management, it is not essential for acute DKA treatment.
C. Serum electrolytes. Patients with DKA experience significant electrolyte imbalances, particularly potassium depletion due to osmotic diuresis and insulin deficiency. Monitoring serum sodium, potassium, and bicarbonate is crucial for guiding fluid and electrolyte replacement therapy. Potassium levels may appear normal or high initially due to acidosis but typically drop with insulin administration.
D. Urine culture. A urine culture is only indicated if a urinary tract infection (UTI) is suspected as a trigger for DKA. However, routine urine culture is not required in every case of DKA unless there are symptoms of infection such as fever, dysuria, or pyuria.
E. Anion gap. DKA is a form of high anion gap metabolic acidosis, caused by the accumulation of ketones. The anion gap (AG) is calculated as (Na⁺ - [Cl⁻ + HCO₃⁻]), with a value >12 mEq/L indicating metabolic acidosis. Monitoring the anion gap helps assess the severity of acidosis and guide treatment progress, as a decreasing anion gap suggests resolution of ketosis.
F. Urine ketones. Urine ketone testing helps confirm the presence of ketoacidosis, particularly in the initial stages of DKA diagnosis. While serum beta-hydroxybutyrate is a more accurate indicator of ketone levels, urine ketones remain useful for initial screening and monitoring treatment response as they decrease with appropriate management.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Elevate the head of the bed and provide a pillow under the client's head. While elevating the head of the bed to 30 degrees can help reduce ICP by promoting venous drainage, placing a pillow under the head may cause neck flexion, which can obstruct venous outflow and worsen intracranial pressure. Instead, the head should be maintained in a neutral midline position without excessive flexion or extension.
B. Suction the endotracheal tube every 15 minutes to reduce choking. Frequent suctioning can increase ICP due to coughing and vagal stimulation. Suctioning should be performed only as needed and using minimized suction duration to prevent sudden rises in intracranial pressure.
C. Intersperse treatments and nursing care with frequent rest periods. Clustering too many nursing interventions together can overstimulate the client and cause spikes in ICP. Providing adequate rest periods between activities such as repositioning, suctioning, and assessments allows intracranial pressure to return to baseline levels, helping to prevent sustained increases.
D. Change positions frequently while providing basic nursing care. Frequent repositioning can cause sudden fluctuations in ICP, especially if movements are abrupt or cause venous obstruction. Turning the client slowly and maintaining the head in a neutral position is recommended to avoid exacerbating intracranial hypertension.
Correct Answer is D
Explanation
A. Measure the client's abdominal girth. While tracking abdominal distension is useful, it does not address the underlying cause of the client's deterioration. Measuring girth should not delay immediate intervention for a potentially life-threatening condition.
B. Monitor the client's recent hemoglobin levels. A drop in hemoglobin would indicate internal bleeding, but waiting for lab results could delay necessary treatment. The client is already showing signs of early shock, requiring urgent medical intervention rather than just monitoring.
C. Prepare for nasogastric tube (NGT) insertion. An NGT may be needed for bowel obstruction or paralytic ileus, but the client's worsening condition suggests a more urgent issue, such as intra-abdominal hemorrhage. Addressing the potential bleeding takes priority over decompression.
D. Notify the healthcare provider (HCP) of the client's status. The client's tachycardia, tachypnea, cool pale skin, and worsening abdominal distension suggest early shock, likely due to postoperative internal bleeding or abdominal compartment syndrome. Immediate notification of the HCP ensures rapid assessment, diagnostic testing, and potential emergency intervention to prevent further deterioration.
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