the test used to differentiate sickle cell trait from sickle cell disease is

NCLEX-PN

Quizlet NCLEX PN 2023

1. The test used to differentiate sickle cell trait from sickle cell disease is:

A. Sickle cell preparation.
B. Peripheral smear.
C. Sickledex.
D. Hemoglobin electrophoresis

Correct answer: D

Rationale: The correct test to differentiate between sickle cell trait and sickle cell disease is hemoglobin electrophoresis. This test separates different types of hemoglobin based on their electrical charge, allowing for the identification of specific hemoglobin variants like HbS in sickle cell disease. Sickle cell preparation and Sickledex are not specific tests for this differentiation. While a peripheral smear can show sickle cells, it does not provide a definitive differentiation between the trait and the disease as it doesn't identify the specific hemoglobin variant present.

2. Which is an example of a sentinel event?

A. The terminally ill client is referred to hospice and dies 3 months later.
B. A client receives an unordered mammogram which reveals a small cyst.
C. A client with a laceration to the knee requiring 4 sutures falls when getting up unassisted after being instructed to remain in bed.
D. A client scheduled for knee replacement surgery had an above-the-knee amputation performed.

Correct answer: D

Rationale: Yes! A sentinel event is an unexpected occurrence causing death or serious injury. In this case, a client who was scheduled for knee replacement surgery but had an above-the-knee amputation performed instead represents a sentinel event as it resulted in serious harm that was not intended. The other choices do not meet the criteria for a sentinel event. Choice A describes a natural progression for a terminally ill client, choice B shows an incidental finding from a test, and choice C involves a preventable fall leading to an injury but not a sentinel event.

3. How can light therapy be effective?

A. overcoming weight problems.
B. helping with allergies.
C. use in alternative medical treatments.
D. working with sleep patterns.

Correct answer: D

Rationale: Light therapy can be effective in treating problems associated with sleep patterns, stress, moods, jaundice in newborns, and seasonal affective disorders. While light therapy is not typically used for overcoming weight problems or helping with allergies, it is specifically known for its benefits in regulating sleep patterns. Therefore, the correct answer is 'working with sleep patterns.' Choices A, B, and C are incorrect as light therapy is not commonly utilized for overcoming weight problems, helping with allergies, or as a general alternative medical treatment.

4. A mother brings her 13-month-old child with Down Syndrome to a pediatric clinic reporting muscle weakness and poor movement. The child's reflexes are noted to be diminished. Which action should the nurse take first?

A. Contact the physician immediately
B. Have the patient go for an X-ray for a c-spine work-up
C. Start an IV on the patient
D. Position the child's neck in a neutral position

Correct answer: D

Rationale: In a child with Down Syndrome presenting with muscle weakness and diminished reflexes, an atlanto-axial dislocation is a concern. The priority action is to position the child's neck in a neutral c-spine posture to prevent further injury. This should be done before any movement or manipulation. Contacting the physician should follow to ensure appropriate evaluation and management. Initiating an IV is not indicated unless specifically ordered for a medical reason. Ordering an X-ray for a c-spine work-up should not be the first action as it may involve movement that could exacerbate the condition if an injury is present.

5. Which of the following is an inappropriate item to include in planning care for a severely neutropenic client?

A. Transfuse neutrophils (granulocytes) to prevent infection.
B. Exclude raw vegetables from the diet.
C. Avoid administering rectal suppositories.
D. Prohibit vases of fresh flowers and plants in the client's room.

Correct answer: A

Rationale: Transfusing neutrophils (granulocytes) to prevent infection is inappropriate in the care of a severely neutropenic client. Neutrophils normally comprise 70% of all white blood cells and can be beneficial in a selected population of infected, severely granulocytopenic clients (less than 500/mm3) who do not respond to antibiotic therapy and who are expected to experience prolonged suppression of granulocyte production. Therefore, transfusing neutrophils is not a standard practice in caring for neutropenic clients. The other choices are appropriate in caring for a severely neutropenic client: excluding raw vegetables from the diet to reduce the risk of infections from potential pathogens, avoiding administering rectal suppositories to prevent any injury or infection due to mucosal damage, and prohibiting vases of fresh flowers and plants in the client's room to minimize the risk of exposure to environmental pathogens.