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Which of the following are chemical markers that identity cells or molecules?
- A. Antibodies
- B. Antigens
- C. T cells B lymphocytes A1 PASSERS TRAINING, RESEARCH, REVIEW & DEVELOPMENT COMPANY MEDICAL SURGICAL NURSING SET G
Correct Answer: A
Rationale: Antibodies are proteins produced by the immune system that specifically recognize and bind to foreign molecules, such as antigens. They are chemical markers that facilitate the identification of cells or molecules by interacting with specific antigens. This interaction plays a crucial role in various immune responses, including immune surveillance, antigen recognition, and immune defense mechanisms. Antibodies are essential tools in biomedical research, diagnostics, and therapeutics for identifying and targeting specific cells or molecules.
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When can a donor and recipient of blood be considered compatible?
- A. If there is no change in the blood color when both samples are mixed in the laboratory
- B. If there are blood clots when both samples are mixed in the laboratory
- C. If there is no clumping or hemolysis when both samples are mixed in the laboratory
- D. If a blood drop does not sink when dropped in water after both samples are mixed in the laboratory
Correct Answer: C
Rationale: Compatibility between a donor and recipient of blood is determined by testing for compatibility of blood types. The most common blood typing systems are ABO and Rh. In compatibility testing, both the donor and recipient blood samples are mixed in the laboratory. If there is no clumping (agglutination) or hemolysis (rupture of red blood cells) observed when the samples are mixed, then the donor and recipient are considered compatible. Clumping or hemolysis indicates an incompatible blood transfusion, which can lead to serious complications like agglutination, blood clotting, or immune responses. Therefore, the absence of clumping or hemolysis is a key indicator of blood compatibility in transfusion medicine.
A client is undergoing peritoneal dialysis. Which of the ff is a major complication of the procedure that the nurse should monitor for?
- A. Internal hemorrhage
- B. Hydronephrosis
- C. Ecchymosis
- D. Peritonitis
Correct Answer: D
Rationale: Peritonitis is a major complication of peritoneal dialysis that the nurse should monitor for. Peritonitis is an infection of the peritoneum, the membrane that lines the abdominal cavity and covers the abdominal organs. It can occur when bacteria from the dialysis solution enter the peritoneal cavity. Symptoms of peritonitis may include abdominal pain, cloudy dialysis effluent, fever, and general signs of infection. Prompt recognition and treatment of peritonitis are crucial to prevent complications such as sepsis and peritoneal membrane damage. Regular monitoring and strict aseptic technique during peritoneal dialysis can help reduce the risk of peritonitis.
a school-age child is admitted in vaso-occlusive sickle cell crisis. the child's care should include which of the following?
- A. correction of acidosis.
- B. adequate hydration, pain management.
- C. pain management, administration of heparin.
- D. adequate oxygenation, replacement of factor viii
Correct Answer: B
Rationale: In a vaso-occlusive sickle cell crisis, it is crucial to focus on adequate hydration and pain management. Hydration is essential to prevent further sickling of red blood cells, which can exacerbate tissue damage and pain. Pain management is a key aspect of care as vaso-occlusive crises often cause severe pain that requires prompt and effective treatment. Administering heparin is not indicated in a vaso-occlusive sickle cell crisis as it is primarily used for conditions like deep vein thrombosis. Correcting acidosis and replacing factor VIII are also not typically part of the management of a vaso-occlusive sickle cell crisis.
A female client recovers from a serious case of insect bites. What skin related advice must the nurse give to the client and all her family members to prevent the recurrence of the ailment?
- A. Ensure minimum crowd interactions when outdoors
- B. Apply insect repellent to clothing and exposed skin
- C. Wear thick woollen clothing to cover the skin while outdoors
- D. Apply a good sunscreen lotion while going outdoors
Correct Answer: B
Rationale: The nurse should advise the client and her family members to apply insect repellent to clothing and exposed skin to prevent insect bites in the future. Insect repellents containing DEET, picaridin, or oil of lemon eucalyptus are effective in repelling mosquitoes, ticks, and other insects that may cause bites. By regularly applying insect repellent, they can reduce the risk of getting bitten and prevent a recurrence of the ailment. Other preventive measures such as wearing long sleeves and pants, avoiding heavily wooded or grassy areas, and using screens on windows and doors can also be beneficial in preventing insect bites.
As the nurse cares for a patient with angioedema, differs from urticaria in that angioedema is characterized by which of the following?
- A. Angioedema is more pruritic.
- B. Angioedema has small, fluid-filled vesicles
- C. Angioedema has a deeper and more that crust.
- D. Angioedema lasts a shorter time.
Correct Answer: C
Rationale: Angioedema differs from urticaria in that it involves deeper layers of the skin and subcutaneous tissue compared to urticaria, which affects the upper layers of the skin. This deeper involvement in angioedema can lead to swelling that appears as large, raised areas that often have a deeper hue compared to the surrounding skin. Angioedema does not typically involve small, fluid-filled vesicles like urticaria, and it is not necessarily more pruritic. Additionally, angioedema tends to last longer than urticaria, which is why option D is not accurate.