The nurse understands that administering a hypertonic solution to a patient will shift water from which space to which space?

Intravascular; interstitial.

Extracellular; intracellular.

Intracellular; extracellular.

Intravascular; intracellular.

Answer and Explanation

The Correct Answer is C

Rationale:
A. Intravascular to interstitial describes fluid movement between two components of the extracellular space, not the effect of hypertonic solutions.
B. Extracellular to intracellular is the opposite effect, which occurs with hypotonic solutions.
C. A hypertonic solution draws water out of the cells (intracellular space) into the extracellular space, including the intravascular compartment, to restore fluid balance.
D. Intravascular to intracellular is also the opposite of what happens with hypertonic fluids.

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Correct Answer is C

Explanation

Rationale:
A. Measuring only from the nose to the xiphoid process omits the earlobe landmark, leading to inaccurate length.
B. Measuring from the earlobe to the xiphoid process also omits part of the required distance.
C. The correct measurement for NG tube insertion is from the tip of the nose → earlobe → xiphoid process. This ensures the tube is long enough to reach the stomach without being excessively long.
D. Measuring only to the earlobe is incomplete and far too short for gastric placement.

A. To decrease the likelihood of aspiration of stomach contents B. To allow a patient to talk C. To prevent dislodgement D. To prevent trauma to the trachea

Correct Answer is B

Explanation

Rationale:
A. To decrease the likelihood of aspiration of stomach contents is not the function of a fenestrated tube; aspiration prevention is managed with cuffed tracheostomy tubes.
B. To allow a patient to talk is correct because the fenestration (small opening) in the tracheostomy tube permits air to flow upward through the vocal cords, enabling speech.
C. To prevent dislodgement is incorrect; tube security is maintained by ties or holders, not fenestration.
D. To prevent trauma to the trachea is not the purpose of fenestration; careful technique and appropriate tube size help prevent trauma.

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The nurse understands that administering a hypertonic solution to a patient will shift water from which space to which space?

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