a patient who is blood type ab

NCLEX-RN

NCLEX RN Predictor Exam

1. For a patient who is blood type AB, which blood product can they receive?

A. Plasma from a type B donor
B. Whole blood from a type A donor
C. Packed RBCs from a type O donor
D. All of the above

Correct answer: C

Rationale: A patient with blood type AB has AB antigens on their red blood cells. This means they can only receive blood products that are compatible with these antigens. Choice A is incorrect because an AB patient cannot receive plasma from a type B donor due to the antibodies present in type B plasma. Choice B is incorrect because an AB patient cannot receive whole blood from a type A donor as it contains incompatible antigens. Choice C is the correct answer because an AB patient can receive packed RBCs from a type O donor. Type O donors have no A or B antigens, making their blood compatible for transfusion to recipients with any blood type. Therefore, choices A and B are incorrect, and the correct choice is C.

2. What is the correct action regarding thigh pressure when comparing it to arm pressure in an adolescent with high blood pressure?

A. The popliteal artery should be auscultated to obtain thigh pressure.
B. The best position to measure thigh pressure is the prone position.
C. If the blood pressure in the arm is high in an adolescent, then it should be compared with the thigh pressure.
D. Thigh pressure is generally higher than arm pressure due to the proximity to the heart and the size of the popliteal vessels.

Correct answer: C

Rationale: When blood pressure measured in the arm is significantly elevated, especially in adolescents and young adults, it is crucial to compare it with thigh pressure to assess for coarctation of the aorta. The popliteal artery, not the femoral artery, should be auscultated for the thigh pressure reading as the femoral artery is closer to the placement of the blood pressure cuff. Generally, thigh pressure is higher than arm pressure; however, if there is coarctation of the artery, arm pressures can be higher than thigh pressures. The preferred position for measuring thigh pressure is the prone position, not supine, with the knee slightly bent to facilitate accurate readings.

3. You have measured the urinary output of your resident at the end of your 8-hour shift. The output is 25 ounces. What should you do next?

A. Convert the number of ounces into cc.
B. Convert the number of ounces into cm.
C. Immediately report this poor output to the nurse.
D. Know that 25 ounces of urine is too much in 8 hours.

Correct answer: A

Rationale: You should convert the number of ounces into cc because cc is the unit of measurement used to record intake and output accurately. This urinary output falls within normal limits, so there is no need to report it immediately to the nurse. It is essential to report urinary outputs of less than 30 cc per hour to detect potential issues early. Converting ounces into centimeters (cm) is not appropriate in this context as cm is a unit of length, not volume. Knowing that 25 ounces of urine is too much in 8 hours is inaccurate as it depends on various factors like fluid intake and individual differences.

4. Where is the duodenum located in the digestive system?

A. It is the first part of the small intestine, located immediately after the stomach.
B. It is the section of the digestive system where the gall bladder delivers bile.
C. It is the section of the small intestine where the pancreas delivers digestive juices.
D. None of the above.

Correct answer: D

Rationale: The duodenum is the first part of the small intestine, located immediately after the stomach. It is where the majority of digestion takes place in the gut. The pancreas delivers digestive juices containing amylase and lipase, while the gall bladder delivers bile to aid in the digestion of fats. Choice A incorrectly states that the duodenum is the third section of the small intestine, which is inaccurate. Choice B incorrectly associates the duodenum with the gall bladder, which is not where the duodenum is located. Choice C incorrectly states that the duodenum is where the pancreas delivers digestive juices, which is partly correct but not the main function of the duodenum. Therefore, the correct answer is 'None of the above' as none of the choices accurately describe the location or functions of the duodenum.

5. When counting an infant's respirations, which technique is correct?

A. Watching the chest rise and fall
B. Observing the movement of the abdomen
C. Placing a hand across the infant's chest
D. Using a stethoscope to listen to the breath sounds

Correct answer: B

Rationale: The correct technique for counting an infant's respirations is to observe the movement of the abdomen. Infants typically have more diaphragmatic breathing than thoracic, so watching the abdomen provides a more accurate count. Placing a hand on the chest or listening with a stethoscope can alter the infant's breathing pattern and provide inaccurate results. Therefore, options A, C, and D are incorrect methods for counting an infant's respirations. By observing the movement of the abdomen, healthcare providers can accurately assess an infant's respiratory rate without influencing their breathing pattern.