A nurse is teaching a client who has a prescription for home oxygen therapy. Which of the following instructions should the nurse include?

Use petroleum-based ointments to moisturize lips.

Choose a wool blanket when using oxygen.

Store oxygen tanks upright.

Keep oxygen tanks 4 feet away from an elect

Peak T Wave on EKG

Answer and Explanation

The Correct Answer is C

A.   Petroleum-based products should not be used in conjunction with oxygen therapy. They are flammable and can pose a fire hazard when used near oxygen. Instead, use water-based moisturizers to prevent dryness of the lips and skin.
B.   Wool and other synthetic fabrics can generate static electricity, which is a fire hazard when using oxygen
therapy. It’s safer to use cotton blankets, as they are less likely to cause static buildup.
C.   Oxygen tanks should be stored upright to prevent them from falling over and to ensure the regulator and valves are properly aligned. Storing tanks upright helps maintain stability and prevents accidental damage to the equipment.
D.   While the recommendation to keep oxygen tanks away from electrical sources is important, the distance may vary based on specific guidelines. It is generally advised to keep oxygen tanks at least 5-10 feet away from electrical sources and heat sources to avoid any risk of ignition or fire.

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Correct Answer is C

Explanation

A. pH 7.35, PaCO2 40 mm Hg, HCO3-25 mEq/L: This is within normal ranges and does not indicate acidosis.
B. pH 7.32, PaCO2 47 mm Hg. HCO3-23 mEq/L: This indicates respiratory acidosis, not metabolic.
C. pH 7.3, PaCO2 36 mm Hg. HCO3- 19 mEq/L: This indicates metabolic acidosis. The pH is low (acidic), and the HCO3- (bicarbonate) is decreased. The PaCO2 is within normal limits, indicating the respiratory system is compensating for the metabolic acidosis.
D. pH 7.5, PaCO2 35 mm Hg, HCO3- 35 mEq/L: This indicates alkalosis, not acidosis.

A. 0.9% sodium chloride (NS) B. 0.45% sodium chloride (1/2 NS) C. Dextrose 5% in Lactated Ringer's (DSLR) D. Lactated Ringer's (LR)

Correct Answer is B

Explanation

A. 0.9% sodium chloride, also known as Normal Saline, is an isotonic solution. It has the same concentration of solutes as blood plasma, which means it does not change the cell's fluid volume but rather maintains it. It is not considered hypotonic.

B. 0.45% sodium chloride, commonly known as Half Normal Saline, is a hypotonic solution. It has a lower concentration of sodium chloride compared to the normal saline and is used to provide hydration and to help correct electrolyte imbalances by allowing water to move into the cells.
C. Dextrose 5% in Lactated Ringer's is not a hypotonic solution. It is actually a type of hypertonic solution. Initially, dextrose 5% is isotonic, but once the dextrose is metabolized, the solution becomes hypotonic due to the electrolyte content of Lactated Ringer’s. However, the classification is generally based on the solution before metabolism, and it is not commonly used as a hypotonic solution.
D. Lactated Ringer's solution is an isotonic solution. It contains electrolytes in concentrations similar to those found in the body's plasma, and it is used to restore fluids and electrolytes. It does not have a hypotonic effect on cells.

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