Author: Anonymous

An antibody screen is reactive at AHG phase of testing for all cells on a three-cell screen. The autocontrol is negative. What is a possible explanation for these results?

Screening cells, crossmatch, and patient autocontrol are positive in 37C and AHG phases but no reactions are noted at immediate spin. What is the most likely cause of these results?

An antibody detection and identification procedure revealed the presence of an alloantibody that is reactive at AHG. What is the first step in selecting units for cross-matching?

Use the dot product to determine whether the vectors are parallel, orthogonal, or neither.v = 2i + j,  w = i – 2j

Convert the polar equation to a rectangular equation.r cos θ = 5

Solve the triangle. Round lengths to the nearest tenth and angle measures to the nearest degree.b = 7, c = 9, A = 119°

The rectangular coordinates of a point are given. Find polar coordinates of the point. Express θ in radians.(2, 2)

Provide an appropriate response.Decide whether or not the transition matrix is regular. Answer Yes or No.

Graph the inequality.x + 5y ≥ -2

Solve using Gauss-Jordan elimination. 6x + 5y = 13 4x + 3y = 7