Nokea
Extraneural metastasis from primary brain tumors is MOST commonly likely to occur in which tumor?
- A. medulloblastoma
- B. primitive neuroectodermal tumor (PNET)
- C. ependymoma
- D. malignant glioma
Correct Answer: A
Rationale: Medulloblastoma is notorious for extraneural spread, particularly to bones and bone marrow.
You may also like to solve these questions
The nurse needs to administer an IM injection of 2.4 million units of penicillin G. it is supplied in a vial of 5,000,000 units of powder for injection. Instructions state to dilute with 8 mL of sterile water. How manu mL should the nurse draw up?
- A. 2.6 mL
- B. 4.1 mL
- C. 3.8 mL
- D. 4.4 mL
Correct Answer: B
Rationale: To administer an IM injection of 2.4 million units of penicillin G, the nurse should first reconstitute the penicillin powder with sterile water as per the instructions. The vial contains 5,000,000 units of the powder and when diluted with 8 mL of sterile water, the resulting concentration would be:
Which is the most reliable method for monitoring fluid balance?
- A. Daily intake and output
- B. Vital signs
- C. Daily weight
- D. Skin turgor
Correct Answer: A
Rationale: Monitoring daily intake and output is the most reliable method for assessing fluid balance in a patient. By accurately measuring the amount of fluids taken in through foods, drinks, and IV fluids, as well as the amount of fluids eliminated through urine, stool, vomit, and other means, healthcare providers can closely track the body's fluid balance. Discrepancies between intake and output can indicate potential issues such as dehydration or fluid overload. This method provides quantitative data that can guide appropriate interventions and treatment adjustments to maintain the patient's fluid balance within normal limits. While vital signs, daily weight, and skin turgor are also important indicators of fluid status, they may not always provide as specific or accurate information as the direct measurement of intake and output.
The nurse is working in a support group for client with acquired immunodeficiency syndrome (AIDS). Which point is most important for the nurse to stress?
- A. Avoiding the use of recreational drugs and alcohol
- B. Refraining from telling anyone about the diagnosis
- C. Following safer-sex practices
- D. Telling potential sex partners about the diagnosis, as required by the law
Correct Answer: C
Rationale: Following safer sex practices is the most important point for the nurse to stress when working in a support group for clients with acquired immunodeficiency syndrome (AIDS). Safer sex practices, such as using condoms consistently and correctly, can help reduce the risk of transmitting the virus to others or acquiring other sexually transmitted infections. While avoiding the use of recreational drugs and alcohol is beneficial for overall health, it is not as crucial as practicing safer sex. Refraining from telling anyone about the diagnosis is not recommended, as social support is important for individuals living with AIDS. Telling potential sex partners about the diagnosis is also essential, not only for ethical reasons but also to prevent the transmission of the virus.
In embryonic period, formation of all of the following occur by the given time EXCEPT
- A. 8 days - blastocyst formation
- B. 6 weeks - ectoderm formation
- C. 8 weeks - crown-rump length about 3 cm
- D. 10 weeks - endoderm formation
Correct Answer: D
Rationale: Endoderm formation occurs much earlier than 10 weeks in the embryonic period.
Hemangiomas are the most common benign tumors of infancy, occurring more in full-term infants. Of the following, the most common risk factor of development of hemangioma is
- A. male infant
- B. female infant
- C. infant of diabetic mother
- D. infant delivered by cesarean section
Correct Answer: B
Rationale: Female infants are at higher risk for developing hemangiomas.