Nokea
Blood cells are formed in the:
- A. Arterioles
- B. Lymphoid tissue
- C. Bone marrow
- D. Muscle tissue
Correct Answer: C
Rationale: The correct answer is C: Bone marrow. Blood cells are primarily formed in the bone marrow through a process called hematopoiesis. The bone marrow contains stem cells that differentiate into various types of blood cells, including red blood cells, white blood cells, and platelets. Arterioles are small blood vessels that carry blood away from the heart, not involved in blood cell formation. Lymphoid tissue plays a role in immune function but not in blood cell production. Muscle tissue is primarily responsible for movement and does not have a role in blood cell formation. Therefore, the bone marrow is the correct answer as it is the main site of blood cell production in the body.
You may also like to solve these questions
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: The correct answer is A: Daily intake and output. Monitoring fluid balance involves tracking the amount of fluids taken in and expelled from the body. Intake includes oral, IV, and tube feedings, while output includes urine, vomitus, diarrhea, and any other fluid losses. Daily intake and output provide a comprehensive view of a patient's fluid status, helping identify trends and potential issues. Vital signs (B) provide general information but not specific to fluid balance. Daily weight (C) can fluctuate due to various factors, not just fluid status. Skin turgor (D) is a late sign of dehydration and not as reliable as intake and output monitoring.
Cancer is the second major cause of death in this country. What is the first step toward effective cancer control?
- A. Increasing governmental control of potential carcinogens
- B. Changing habits and customs that predispose the individual to cancer
- C. Conducting more mass screening programs
- D. Educating public and professional people about cancer
Correct Answer: B
Rationale: The correct answer is B because changing habits and customs that predispose the individual to cancer is crucial in preventing cancer. This includes lifestyle changes such as quitting smoking, maintaining a healthy diet, exercising regularly, and avoiding excessive sun exposure. By modifying behaviors that increase cancer risk, individuals can significantly reduce their chances of developing cancer.
A: Increasing governmental control of potential carcinogens is not the first step towards effective cancer control as individual behaviors have a more direct impact on cancer risk.
C: Conducting more mass screening programs is important but not the first step as prevention through lifestyle changes takes priority.
D: Educating the public and professionals about cancer is essential but changing habits is the initial crucial step in effective cancer control.
. During the first 24 hours after a client is diagnosed with Addisonian crisis, which of the following should the nurse perform frequently?
- A. Weigh the client.
- B. Administer oral hydrocortisone.
- C. Test urine for ketones.
- D. Assess vital signs.
Correct Answer: D
Rationale: The correct answer is D, assess vital signs, as it is crucial to monitor the client's hemodynamic stability and response to treatment during the critical initial 24 hours of Addisonian crisis. Vital signs such as blood pressure, heart rate, and respiratory rate provide valuable information about the client's condition and response to therapy. Weighing the client (choice A) and testing urine for ketones (choice C) may be important but not as immediately critical as monitoring vital signs. Administering oral hydrocortisone (choice B) is essential for treatment but does not require frequent administration within the first 24 hours.
What is the last step when inserting an IV cannula?
- A. Secure the cannula with tape.
- B. Document the insertion site, date, and type of cannula used.
- C. Assess the site
- D. Place a sterile dressing over the insertion site. INFLAMMATORY AND INFECTIOUS DISTURBANCES Caring for clients with upper respiratory infections
Correct Answer: A
Rationale: The correct answer is A: Secure the cannula with tape. This is the last step in inserting an IV cannula to ensure it stays in place and prevents dislodgement or movement. Securing the cannula with tape helps maintain proper positioning and prevents accidental removal. Documenting the insertion site, date, and type of cannula used (B) is important but typically done earlier in the process. Assessing the site (C) should be done before securing the cannula to ensure proper placement. Placing a sterile dressing over the insertion site (D) is also important, but it usually comes before securing the cannula with tape to maintain a clean and sterile environment.
A client with cancer is being evaluated for possible metastasis. Which of the following is one of the most common metastasis site for cancer cells?
- A. Liver
- B. Colon
- C. Reproductive tract
- D. White blood cells (WBCs)
Correct Answer: A
Rationale: The correct answer is A: Liver. Cancer cells commonly metastasize to the liver due to its rich blood supply, making it an ideal environment for tumor growth. Liver metastasis can occur from various primary cancer sites. The liver filters blood and is susceptible to receiving cancer cells circulating in the bloodstream. Metastasis to the colon (B) is less common as it is typically the primary site for colon cancer. Metastasis to the reproductive tract (C) can occur but is not as common as liver metastasis. White blood cells (D) are a part of the immune system and do not serve as a common site for cancer metastasis.