A client with tuberculosis returns to the clinic for daily antibiotic injections for a urinary infection. The client has been taking antitubercular medications for 10 weeks and reports ringing in the ears. Which prescribed medication should the practical nurse (PN) report to the healthcare provider?

A. Increased oxygen saturation indicates that the Venturi face mask is effectively delivering the specified concentration of oxygen. This is the primary goal of using a Venturi mask, which provides precise oxygen delivery to improve oxygen saturation levels.
B. Increased cough productivity is not a direct indicator of the effectiveness of a Venturi face mask. The mask's purpose is to deliver oxygen, not to alter cough patterns.
C. Decreased cough frequency is unrelated to the function of the Venturi face mask. The mask's effectiveness is measured by oxygen delivery rather than changes in cough frequency.
D. Decreased breath sounds are not a direct measure of the effectiveness of a Venturi face mask. Breath sounds could indicate other respiratory issues but do not specifically reflect the effectiveness of oxygen therapy.

A. 50% dextrose
50% dextrose is not isotonic; it is a hypertonic solution. Hypertonic solutions have a higher concentration of solutes compared to the cells, causing water to move out of the cells and into the extracellular space, which does not treat fluid volume deficit effectively.
B. 0.45% sodium chloride
0.45% sodium chloride, also known as half-normal saline, is a hypotonic solution. Hypotonic solutions have a lower concentration of solutes compared to the cells, which would cause water to move into the cells rather than stay in the extracellular space to address fluid volume deficit.
C. 20% dextrose
20% dextrose is a hypertonic solution. It contains a higher concentration of dextrose compared to the extracellular fluid, which draws water into the extracellular space but is not used for treating fluid volume deficits.
D. 5% dextrose
5% dextrose (D5W) is initially isotonic but becomes hypotonic once metabolized, as the dextrose is used up and only water remains. It is not suitable for continuous isotonic fluid therapy for fluid volume deficit.
E. 5% dextrose with 0.45% sodium chloride
5% dextrose with 0.45% sodium chloride is a hypertonic solution. While it starts isotonic, it becomes hypotonic once the dextrose is metabolized, making it unsuitable for long-term isotonic fluid replacement.
F. 5% dextrose with lactated Ringer's
5% dextrose with lactated Ringer's is a hypertonic solution. It contains both dextrose and electrolytes, which are not purely isotonic and may not be ideal for addressing fluid volume deficits on their own.
G. Lactated Ringer's
Lactated Ringer's is an isotonic solution. It has a similar osmolarity to plasma and is used for fluid volume replacement, helping to restore blood volume and maintain electrolyte balance.
H. 0.9% sodium chloride
0.9% sodium chloride, or normal saline, is an isotonic solution. It has the same osmolarity as plasma and is commonly used for fluid volume replacement and maintaining hydration