Nokea
The nurse knows which of the following is true about immunity?
- A. Antibody-mediated defense occurs through the T-cell system
- B. Cellular immunity is mediated by antibodies produced by the B-cells
- C. Antibodies are produced by the B-cells
- D. Lymphocytes increase with an allergic response
Correct Answer: C
Rationale: Antibodies, also known as immunoglobulins, are proteins produced by a type of white blood cell called B-lymphocytes (B-cells). These antibodies play a crucial role in the immune response by recognizing and binding to specific antigens such as pathogens. This binding can lead to the inactivation of the pathogens or marking them for destruction by other immune cells. B-cells are a key component of the humoral immune response, which involves the production of antibodies to defend against infections. The statement that antibodies are produced by the B-cells is, therefore, true.
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You are explaining the risk of leukemia in children with Down syndrome to medical students; your discussion will include all the following statements EXCEPT
- A. acute leukemia occurs more frequently in children with Down syndrome than in the general population
- B. AML is more common in children with Down syndrome as compared to ALL
- C. children with Down syndrome have a slightly inferior outcome ratio of ALL/AML in general
- D. children with Down syndrome who develop AML demonstrate remarkable sensitivity to antimetabolites
Correct Answer: C
Rationale: Children with Down syndrome often have better outcomes when treated with specific regimens, contrary to this option.
At a public health fair, the nurse teaches a group of women about breast cancer awareness. Possible signs of breast cancer include:
- A. Fever.
- B. Nipple discharge and a breast nodule.
- C. Breast changes during menstruation.
- D. Fever and erythema of the breast.
Correct Answer: B
Rationale: Possible signs of breast cancer include nipple discharge (especially if it is bloody) and a breast nodule or lump that can be felt. It is important to note any changes in the breasts and report them to a healthcare provider for evaluation. Fever, breast changes during menstruation, and erythema of the breast are not typically associated with breast cancer. It is essential for women to perform regular breast self-exams and seek medical attention if they notice any unusual changes in their breast tissue.
The age at which the infant can see an object, grasp it, and bring it to the mouth is
- A. 4 months
- B. 5 months
- C. 6 months
- D. 7 months
Correct Answer: A
Rationale: This milestone is typically achieved around 4 months.
When caring for Mr. Reyes, the nurse should assess for
- A. Decreased carotid pulses
- B. Altered level of consciousness
- C. Bleeding from oral cavity
- D. Absence of deep tendon-reflexes
Correct Answer: B
Rationale: When caring for Mr. Reyes, the nurse should assess for an altered level of consciousness as it is a crucial indicator of his overall neurological status. Changes in consciousness can signify multiple underlying issues such as neurological, metabolic, or circulatory problems. It is important for the nurse to monitor Mr. Reyes closely for any signs of confusion, disorientation, agitation, drowsiness, or changes in behavior that could indicate a decline in his neurological function. Assessing and addressing alterations in consciousness promptly is essential for providing appropriate care and preventing further complications.
Postural Hypotension is A drop in systolic pressure less than 10 mmHg when patient changes position from lying to sitting.
- A. A drop in systolic pressure greater than 10 mmHg when patient changes position from lying to sitting
- B. A drop in diastolic pressure less than 10 mmHg when patient changes position from lying to sitting
- C. A drop in diastolic pressure greater than 10 mmHg when patient changes position from lying to sitting
Correct Answer: A
Rationale: Postural hypotension, also known as orthostatic hypotension, refers to a drop in blood pressure when a person stands up from a sitting or lying position. The usual criteria for diagnosing postural hypotension is a drop in systolic blood pressure of 20 mmHg or more or a drop in diastolic blood pressure of 10 mmHg or more within 3 minutes of standing up.