A patient has a negative indirect antibody screen. The immediate spin in crossmatching is positive/incompatible with some of the units. List FOUR possible reasons for this
A patient has a negative indirect antibody screen. The immediate spin in crossmatching is positive/incompatible with some of the units. List FOUR possible reasons for this
Homework Answers
A negative indirect antibody screen (coombs test) gives positive or incompatible after immediate spin in cross matching, indicates ABO incompatibility.
Reasons can be, the blood samples would have contaminated with other blood samples or double checking the recipient and donor blood group would be efficient.
Next reason might be, if the forward and reverse A reactions are weaker than 4+ for the subgroup A or AB with anti A1.
Due to recent transfusion, the sample might contain passive anti- A or B from ABO incompatible platelets.
It will easily get reacted at room temperature, hence doing the test at lower temperatures might be effective.
Add Answer to:
A patient has a negative indirect antibody screen. The immediate spin in crossmatching is positive/incompatible with some of the units. List FOUR possible reasons for this
6. What ABO/Rh is considered to be the universal recipient? Why? 7. A patient has a...
6. What ABO/Rh is considered to be the universal recipient? Why? 7. A patient has a negative indirect antibody screen. The immediate spin in crossmatching is positive/incompatible with some of the units. Describe four possible reasons for this.
6. What ABO/Rh is considered to be the universal recipient? Why? 7. A patient has a negative indirect antibody screen. The immediate spin in crossmatching is positive/incompatible with some of the units. Describe four possible reasons for this.
indirect Antiglobulin Test PAGE 7 of 7 Lab 8. A patient had a positive antiglobulin screen...
indirect Antiglobulin Test PAGE 7 of 7 Lab 8. A patient had a positive antiglobulin screen in 1990 Today his screen is negative. Explain why this may occur. Is he at risk if he is exposed to that antibody again? Why or why not?
Having located 6 E-negative donor units, you perform crossmatches on the units. One of the units...
Having located 6 E-negative donor units, you perform crossmatches on the units. One of the units is incompatible in the antiglobulin phase (2+ reactivity). The physician is becoming insistent on beginning the transfusion because the patient is having some shortness of breath. How do you respond to the physician’s request? List several reasons to explain the one incompatible donor unit. What additional testing do you perform?
Exercise # 1 A 60-year-old woman with anemia is admitted to the hospital. Her hematocrit is...
Exercise # 1 A 60-year-old woman with anemia is admitted to the hospital. Her hematocrit is 17% and she has been experiencing subtle gastrointestinal bleeding over many weeks. Her physician requests 4 units of red blood cells for transfusion. The patient’s RBCs phenotyped as group AB, D-positive. Her antibody screen is negative on the sample drawn in the emergency room, but her records indicate a previously detected anti-E. Only three group AB, D-positive red blood cell units are available in...
Use the following choices to match the acceptable method(s) of performing compatibility testing in the situations...
Use the following choices to match the acceptable method(s) of performing compatibility testing in the situations listed below. More than one answer may be acceptable, so list all possibilities for each scenario. After each scenario, explain why the type of compatibility testing is acceptable a. Antiglobulin (AHG) crossmatch b. Immediate-spin crossmatch c. Electronic crossmatch 1) A chronically transfused patient with history of anti-E. The antibody is not detectable in the current sample. 2) Patient donated two units of autologous blood....
A 55-year-old man is admitted to the emergency department after a motor vehicle accident. The patient...
A 55-year-old man is admitted to the emergency department after a motor vehicle accident. The patient is hemorrhaging from a lacerated spleen and requires emergency surgery. Pretransfusion testing determines that the patient’s phenotype is group A, D-negative type with a negative antibody screen. Crossmatches with red blood cell units are compatible by the immediate-spin crossmatch. During surgery, the patient receives 6 units of group A, D-negative red blood cells and 4 units of group A frozen plasma. Three days later,...
nyia Ayla) Exercise 4.5 Following antibody identification, your patient possesses anti-K, anti-Jk", and anti-E. How many...
nyia Ayla) Exercise 4.5 Following antibody identification, your patient possesses anti-K, anti-Jk", and anti-E. How many RBC units do you need to screen to find two antigen-negative RBC units? The antigens occur in the population with the following frequencies: E+ = 30%; K+ = 9%; Jk(a+) - 77%. Exercise 4.6 You performed a population study on your class and found that 84% are D-positive. Using the Hardy-Weinberg calculation, determine the percentage of your classmates who are heterozygous for D antigen....
History: V is a 52-year old woman who just underwent surgery that resulted in the need to transfuse two units of red blood cells. V has three children and has reported to have been transfused twice in...
History:
V is a 52-year old woman who just underwent surgery that
resulted in the need to transfuse two units of red blood cells. V
has three children and has reported to have been transfused twice
in the past.
6. Which of the
following antibodies remain after completion of the antibody
identification (completion of panel antigram)? (2 pts)
A.
Anti-Jsa
B.
Anti-Lub
C. Anti-e
D.
Anti-Jkb
7. Given the
patient history and all serology results, what is the best
hypothesis...
Exercise 7-1 as a study ald, your classmate Pascal Adams has prepared the following list of...
Exercise 7-1 as a study ald, your classmate Pascal Adams has prepared the following list of statements about decision-making and incremental analysis. Identify each statement as true or false 1. The first step in management's decision-making process is, Determine and evaluate possible courses of action." 2. The final step in management's decision-making process is to actually make the decision. 3. Accounting's contribution to management's decision-making process occurs primarily in evaluating possible courses of action and in reviewing the results 4....
Which clinical evidence indicates that cirrhosis has not developed in this patient as a result of...
Which clinical evidence indicates that cirrhosis has not
developed in this patient as a result of cystic fibrosis?
CASE STUDY CYSTIC FIBROSIS Berial mised o For the Disease Summary for this case study se the CD-ROM this PATIENT CASE cient lent Patient's Chief Complaints Provided by patient's mother: "I noticed a let-down in T's exercise tolerance level a week ago and the last couple of days his cough and sputum production have gotten much worse. When he started having breathing...
6. What ABO/Rh is considered to be the universal recipient? Why? 7. A patient has a negative indirect antibody screen. The immediate spin in crossmatching is positive/incompatible with some of the units. Describe four possible reasons for this.
6. What ABO/Rh is considered to be the universal recipient? Why? 7. A patient has a negative indirect antibody screen. The immediate spin in crossmatching is positive/incompatible with some of the units. Describe four possible reasons for this.
indirect Antiglobulin Test PAGE 7 of 7 Lab 8. A patient had a positive antiglobulin screen in 1990 Today his screen is negative. Explain why this may occur. Is he at risk if he is exposed to that antibody again? Why or why not?
Use the following choices to match the acceptable method(s) of performing compatibility testing in the situations listed below. More than one answer may be acceptable, so list all possibilities for each scenario. After each scenario, explain why the type of compatibility testing is acceptable a. Antiglobulin (AHG) crossmatch b. Immediate-spin crossmatch c. Electronic crossmatch 1) A chronically transfused patient with history of anti-E. The antibody is not detectable in the current sample. 2) Patient donated two units of autologous blood....
nyia Ayla) Exercise 4.5 Following antibody identification, your patient possesses anti-K, anti-Jk", and anti-E. How many RBC units do you need to screen to find two antigen-negative RBC units? The antigens occur in the population with the following frequencies: E+ = 30%; K+ = 9%; Jk(a+) - 77%. Exercise 4.6 You performed a population study on your class and found that 84% are D-positive. Using the Hardy-Weinberg calculation, determine the percentage of your classmates who are heterozygous for D antigen....
History:
V is a 52-year old woman who just underwent surgery that
resulted in the need to transfuse two units of red blood cells. V
has three children and has reported to have been transfused twice
in the past.
6. Which of the
following antibodies remain after completion of the antibody
identification (completion of panel antigram)? (2 pts)
A.
Anti-Jsa
B.
Anti-Lub
C. Anti-e
D.
Anti-Jkb
7. Given the
patient history and all serology results, what is the best
hypothesis...
Exercise 7-1 as a study ald, your classmate Pascal Adams has prepared the following list of statements about decision-making and incremental analysis. Identify each statement as true or false 1. The first step in management's decision-making process is, Determine and evaluate possible courses of action." 2. The final step in management's decision-making process is to actually make the decision. 3. Accounting's contribution to management's decision-making process occurs primarily in evaluating possible courses of action and in reviewing the results 4....
Which clinical evidence indicates that cirrhosis has not
developed in this patient as a result of cystic fibrosis?
CASE STUDY CYSTIC FIBROSIS Berial mised o For the Disease Summary for this case study se the CD-ROM this PATIENT CASE cient lent Patient's Chief Complaints Provided by patient's mother: "I noticed a let-down in T's exercise tolerance level a week ago and the last couple of days his cough and sputum production have gotten much worse. When he started having breathing...
Most questions answered within 3 hours.
-
Phosphorous + bromine = phosphorous tribromide. If 35.0 g of
bromine are reacted and 27.9 grams...
asked 1 hour ago -
Derive the long wavelength limit of the Planck energy density
distribution
asked 59 minutes ago -
Calculate the pH of each of the following solutions.
0.50 M HBr
3.1×10−4 M KOH
4.2×10−5...
asked 4 hours ago -
For the year ended December 31, Depot Max’s cost of merchandise
sold was $85,600. Inventory at the...
asked 4 hours ago -
Week 10 - Professional Memo Assignment
Professional Memo Assignment
Your mission for this week, should you...
asked 4 hours ago -
Write a Python program that stores the data for each
player on the team, and it...
asked 4 hours ago -
In
the last 3 months, mike never knows when he is going to get his
allowance...
asked 5 hours ago -
Is Ca(OH)2 a Bronsted base, Lewis base, or both? Why?
asked 5 hours ago -
1A- Why don’t voters complain about U.S. tariffs on imported
sugar?
Because sugar is only a...
asked 5 hours ago -
Cash Payback Period
Primera Banco is evaluating two capital investment proposals for
a drive-up ATM kiosk,...
asked 5 hours ago -
Create a button in Swift (Xcode) that will create a charge,
create a charge using Stripe's...
asked 5 hours ago -
The reaction rate of CO and NO2 in the reaction
CO(g) + NO2(g) → CO2(g) +...
asked 5 hours ago