A nurse is caring for a client who has rheumatoid arthritis (RA). The nurse understands that this condition is caused by what type of hypersensitivity?

The SOFA score is a tool that assesses the degree of organ dysfunction or failure in septic shock. It is based on six parameters: blood pressure, Glasgow coma scale, PaO2/FiO2 ratio, platelet count, bilirubin level, and creatinine level. Each parameter is assigned a score from 0 to 4 based on the severity of the abnormality. The total SOFA score ranges from 0 to 24, with higher scores indicating worse organ dysfunction or failure.

The client's blood pressure of 80/50 mmHg corresponds to a SOFA score of 1, as it indicates hypotension.

The client's Glasgow coma scale is not given, so it is assumed to be normal (15), which corresponds to a SOFA score of 0.

The client's PaO2/FiO2 ratio is not given, so it is assumed to be normal (>400), which corresponds to a SOFA score of 0.

The client's platelet count is not given, so it is assumed to be normal (>150 x 10^9/L), which corresponds to a SOFA score of 0.

The client's bilirubin level is not given, so it is assumed to be normal (<20 micromol/L), which corresponds to a SOFA score of 0.

The client's creatinine level is not given, so it is assumed to be normal (<110 micromol/L), which corresponds to a SOFA score of 0.

The total SOFA score is the sum of the scores for each parameter: 1 + 0 + 0 + 0 + 0 + 0 = 1. Therefore, the client has a SOFA score of 1.

Choice A reason:

Decreased hematocrit is an indicator of improvement for a client who has hypovolemia and is receiving IV fluid therapy. Hematocrit is the percentage of red blood cells in the blood. Hypovolemia causes hemoconcentration, which increases the hematocrit level. IV fluid therapy restores the blood volume and dilutes the red blood cells, which decreases the hematocrit level.

Choice B reason:

Increased urine specific gravity is not an indicator of improvement for a client who has hypovolemia and is receiving IV fluid therapy. Urine specific gravity is a measure of the concentration of solutes in the urine. Hypovolemia causes dehydration, which increases the urine specific gravity. IV fluid therapy rehydrates the body and lowers the urine specific gravity.

Choice C reason:

Decreased central venous pressure is not an indicator of improvement for a client who has hypovolemia and is receiving IV fluid therapy. Central venous pressure is a measure of the pressure in the right atrium and vena cava. Hypovolemia causes decreased preload, which lowers the central venous pressure. IV fluid therapy increases preload and raises the central venous pressure.

Choice D reason:

Increased blood urea nitrogen is not an indicator of improvement for a client who has hypovolemia and is receiving IV fluid therapy. Blood urea nitrogen is a measure of the amount of urea in the blood. Urea is a waste product of protein metabolism that is excreted by the kidneys. Hypovolemia causes decreased renal perfusion, which increases the blood urea nitrogen level. IV fluid therapy improves renal perfusion and lowers the blood urea nitrogen level.