A nurse is caring for a client who comes to the clinic to be tested for tuberculosis (TB) after a close family contact tests positive. Which of the following measures should the nurse anticipate preparing for this client?

A. Wearing a mask helps prevent the spread of respiratory droplets that may contain infectious pathogens, such as those causing pneumonia. It protects both the client from potential pathogens carried by the AP and the AP from potential exposure to the client's respiratory secretions.

B. Gloves should be worn when there is a risk of contact with the client's body fluids, including respiratory secretions, to prevent transmission of infectious agents. Hand hygiene (washing hands well) is important but does not replace the need for gloves in situations where there is a risk of exposure to bodily fluids.
C. Placing a mask on the client would not typically be required unless the client is coughing excessively and the mask is intended to contain respiratory droplets. However, the focus of precautions should primarily be on protecting the AP.
D. Wearing a gown may be necessary if there is a risk of contamination with respiratory secretions or if the AP anticipates contact with the client's body fluids. However, it is not specifically required for routine vital sign measurement unless there is visible contamination or extensive contact with the client's secretions.

A. Hematocrit measures the percentage of red blood cells in the blood. In fluid volume deficit, there is hemoconcentration due to decreased fluid volume, resulting in an increase in hematocrit rather than a decrease. Therefore, a decreased hematocrit would not be an expected finding in fluid volume deficit.
B. Urine ketones are typically elevated in conditions where there is increased fat metabolism, such as in diabetic ketoacidosis or starvation. They are not directly related to fluid volume deficit and would not be an expected finding.
C. Urine specific gravity measures the concentration of solutes in the urine, indicating the kidney's ability to concentrate or dilute urine. In fluid volume deficit, the body conserves water, leading to increased urine concentration and higher urine specific gravity. Therefore, increased urine specific gravity is an expected finding in fluid volume deficit.
D. BUN is a measure of kidney function and protein metabolism. In fluid volume deficit, there is hemoconcentration due to decreased fluid volume, which can lead to an increase in BUN rather than a decrease. A decreased BUN would not typically be an expected finding in fluid volume deficit.