A nurse is reviewing laboratory results for a client who has metabolic alkalosis. Which of the following blood gas values should the nurse expect?

pH 7.36 (7.35 to 7.45), PaCO2 38 mm Hg (35 to 45 mmHg) HCO3 25 mEq/L (22 to 26 mEq/L)

pH 7.48 (7.35 to 7.45), PaCO, 32 mm Hg (35 to 45 mm Hg). HCO3 24 mEq/L (22 to 26 mE q/L)

pH 7.46 (7.35 to 7.45). PaCO2 36 mm Hg (35 to 45 mm Hg). HCO3 29 mEq/L (22 to 26 mEq/L)

pH 7.26 (7.35 to 7.45). PaCO, 35 mm Hg (35 to 45 mm Hg). HCO3 18 mEq/L (22 to 26 mEq/L)

Answer and Explanation

The Correct Answer is C

A) pH 7.36 (7.35 to 7.45), PaCO2 38 mm Hg (35 to 45 mmHg), HCO3 25 mEq/L (22 to 26 mEq/L): This is a normal set of arterial blood gas (ABG) values, with a pH within normal range, a normal PaCO2, and a normal HCO3. It does not suggest metabolic alkalosis.

B) pH 7.48 (7.35 to 7.45), PaCO2 32 mm Hg (35 to 45 mm Hg), HCO3 24 mEq/L (22 to 26 mEq/L): Although the pH is elevated, indicating alkalosis, the PaCO2 is slightly low, and the bicarbonate (HCO3) is within the normal range. This set of values does not indicate metabolic alkalosis, but could indicate respiratory alkalosis or compensated alkalosis.

C) pH 7.46 (7.35 to 7.45), PaCO2 36 mm Hg (35 to 45 mm Hg), HCO3 29 mEq/L (22 to 26 mEq/L): This is consistent with metabolic alkalosis. The elevated pH (alkalosis) combined with an increased bicarbonate level (HCO3 > 26 mEq/L) and a normal PaCO2 suggests metabolic alkalosis, as the kidneys retain bicarbonate to compensate for the condition.

D) pH 7.26 (7.35 to 7.45), PaCO2 35 mm Hg (35 to 45 mm Hg), HCO3 18 mEq/L (22 to 26 mEq/L): This set of values indicates acidosis, not alkalosis. The pH is low, indicating acidosis, and the bicarbonate (HCO3) is also low, which suggests metabolic acidosis. The PaCO2 is normal, which further supports a metabolic origin of the acidosis.

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Free Nursing Study Resources

Correct Answer is B

Explanation

A) "Tape the tube to the child's cheek."
Taping the tube to the child's cheek is not appropriate for securing a gastrostomy enteral tube. The tube should be securely anchored to the child's abdomen to prevent dislodgment or irritation. Taping to the cheek can lead to unnecessary friction or skin breakdown.

B) "Secure the tubing to the child's abdomen."
The proper method to secure a gastrostomy tube is to anchor the tubing to the child’s abdomen with a specialized securing device or adhesive bandage. This ensures the tube remains in place, minimizing movement and preventing irritation or accidental removal. Proper securing also promotes comfort and safety for the child.

C) "Apply water-soluble lubricant to the site."
Water-soluble lubricant should not be applied directly to the gastrostomy site. This can cause irritation or create a barrier that inhibits proper healing. Instead, the site should be kept clean and dry, with appropriate care to prevent infection or breakdown.

D) "Attach an extension tube to the site's opening prior to use."
While attaching an extension tube may be necessary for feeding or drainage, this action is not related to site care. The focus of site care is to ensure the gastrostomy tube remains securely in place, and the skin around the site is maintained without infection or irritation. Extension tubes are used for feeding or medication administration, not for routine site care.

A. Staff members used a class A fire extinguisher during an electrical fire B. Staff members review the locations of fire extinguishers every 2 to 3 years. C. An evacuation was ordered during a fire when fire extinguishers were not effective. D. Fire alarms in the facility have the same sound as other alarms.

Correct Answer is C

Explanation

Correct answers: C

Rationale:

A. Staff members using a class A fire extinguisher for an electrical fire is incorrect and dangerous. Class A extinguishers are for ordinary combustibles like paper and wood. Electrical fires require class C extinguishers to prevent the conduction of electricity.

B. Reviewing the locations of fire extinguishers every 2 to 3 years is insufficient for an effective safety plan. Regular fire safety drills and location reviews should occur at least annually. Frequent reinforcement ensures rapid response during a real fire emergency.

C. An evacuation order when fire extinguishers are ineffective indicates an effective safety plan and sound clinical judgment. The priority in the RACE acronym is to rescue and then evacuate if the fire is not contained. This protects life when suppression fails.

D. Fire alarms having the same sound as other alarms is a failure in safety design. Distinctive auditory signals are required to prevent confusion during an emergency. Unique alarms ensure that staff and patients immediately identify the specific nature of the threat.

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A nurse is reviewing laboratory results for a client who has metabolic alkalosis. Which of the following blood gas values should the nurse expect?

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