A nurse is caring for a client who is receiving oxygen therapy via a nasal cannula. The nurse explains to the client that this method of oxygen delivery does which of the following?

Restricts the client's ability to eat, speak, or drink

Delivers a constant rate of a specific concentration of oxygen

Delivers a high concentration of oxygen

Delivers a low concentration of oxygen

Answer and Explanation

The Correct Answer is C

A reason:

Restricting the client's ability to eat, speak, or drink is incorrect. A nasal cannula is designed to allow clients to eat, speak, and drink comfortably while receiving oxygen therapy.

B reason:

Delivering a constant rate of a specific concentration of oxygen is somewhat accurate but incomplete. The concentration can vary based on the flow rate set by the healthcare provider.

C reason:

Delivering a high concentration of oxygen is incorrect. Nasal cannulas typically provide low to moderate concentrations of oxygen, depending on the flow rate (usually 1-6 liters per minute).

D reason:

Delivering a low concentration of oxygen is correct. Nasal cannulas are used to provide supplemental oxygen at low flow rates, suitable for clients who require minimal assistance with their oxygen levels.

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Correct Answer is A

Explanation

A reason: Yellow-green drainage on the surgical incision. Yellow-green drainage indicates a potential infection at the surgical site. Postoperative infections can complicate the healing process and require prompt medical intervention. This finding should be reported to the provider immediately.

B reason: Straw-colored urine from an indwelling urinary catheter. Straw-colored urine is a normal finding and does not indicate any complications related to the surgery. This choice does not require reporting to the provider as it is within the normal range of expected outcomes.

C reason: Blood pressure 112/76 mm Hg. This blood pressure reading is within the normal range and does not indicate any immediate postoperative complications. There is no need to report this finding as it does not suggest an adverse event.

D reason: Respiratory rate 18/min. A respiratory rate of 18 breaths per minute is within the normal range for adults and does not indicate any respiratory distress or other complications. This finding does not require reporting to the provider.

A. Decreased heart rate B. Increased blood pressure C. Weak pulse D. Dyspnea

Correct Answer is C

Explanation

A reason:

Decreased heart rate is not a manifestation of hypovolemia. In fact, hypovolemia typically causes an increased heart rate (tachycardia) as the body attempts to compensate for the reduced blood volume.

B reason:

Increased blood pressure is not a characteristic of hypovolemia. Hypovolemia usually results in decreased blood pressure (hypotension) due to the reduced volume of blood circulating in the body.

C reason:

A weak pulse is a common manifestation of hypovolemia. Due to the reduced blood volume, the heart may not be able to generate a strong pulse, resulting in a weak and thready pulse.

D reason:

Dyspnea, or difficulty breathing, can be associated with hypovolemia but it is not as direct a manifestation as a weak pulse. It may occur due to inadequate oxygen delivery to tissues or related conditions, but the primary signs of hypovolemia are related to blood pressure and pulse.

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A nurse is caring for a client who is receiving oxygen therapy via a nasal cannula. The nurse explains to the client that this method of oxygen delivery does which of the following?

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