1.
Which of the following is NOT part of the lymphatic system
Correct Answer
C. Hypothalamus
Explanation
Lymphatic vessels help to return tissue fluid to the circulatory system. Lymph nodes and nodules are masses of lymphatic tissue. Macrophages in the spleen phagocytize pathogens.
2.
Chemical markers that identify cells or molecules are called?
Correct Answer
A. Antigens
Explanation
The human body has "self" antigens that identify cells belonging to the body. If antigens of foreign cells do not match, they are recognized and destroyed.
3.
What is true about B cells and T cells.
Correct Answer
A. Both are formed in the red bone marrow, with T cells maturing in the Thymus and B cells maturing in the bone marrow.
Explanation
B cells and T cells are both formed in the red bone marrow. T cells migrate to the thymus to mature before moving to the lymph nodes, nodules, and spleen. B cells remain in the bone marrow to mature and them move directly to the lymphatic tissue.
4.
What are the functions of T cells in cell mediated immunity?
Correct Answer
D. Helper T cells (CD4) stimulate Killer T cells (CD8) which are cytotoxic and lyse infected cells, malignant cells, or foreign tissue. Memory T cells remember for future invasion
Explanation
Cell-mediated immunity only involves T cells.
5.
What are the function of Helper T cells (CD4) in humoral immunity?
Correct Answer
A. Helper T cells stimulate B cells to divide and become specialized
Explanation
Humoral immunity involves both T cells and B cells. Killer T cells lyse foreign antigens
6.
What would be the next course of action following a positive ELISA HIV test?
Correct Answer
C. Western blot test is performed
Explanation
The ELISA test is used to determine if HIV antibodies are present. A positive test will then need to beconfirmed by the Western Blot test which determines if HIV antigens are present.
7.
What would determine if a Western Blot test is positive?
Correct Answer
D. The presence of two or more HIV antigens
Explanation
A positive Western Blot is determined if there are at least two of more HIV antigens present. Western Blot is used as a confirmation test.
8.
What equipment would be needed for the administration of a blood transfusion? (select all that apply)
Correct Answer(s)
A. Normal Saline
C. Tubing with a filter
D. #18 or #20 gauge IV catheter
Explanation
All blood is hung with Normal Saline and special tubing containing a filter that filters out harmful particles. An #18 or #20 gauge catheter is appropriate for the viscosity and amount to be transfused.
9.
A blood transfusion is ordered for a patient with a peripheral IV infusion located in the right forearm running Lactated ringers at 80ml/hour. The nurse begins to prepare another line in the left a/c for the ordered transfusion. The patient requests that the nurse use the existing site. Which statement made by the nurse is correct?
Correct Answer
A. I will need to infuse the blood transfusion using a separate line
Explanation
Blood transfusions must be administered via a separate IV line with NS and blood tubing containing a filter that removes harmful particles.
10.
A patient has an order for a unit of packed RBCs to be administered. At 0600 the transfusion is started. At 1000, it is noted that the IV line has clotted with only 80% of the transfusion complete. What intervention should the nurse take?
Correct Answer
C. Discontinue the blood infusion, notify the blood bank and document the findings
Explanation
Blood must be infused within 4 hours or be discontinued. Blood and packaging should be returned to the blood bank.
11.
Before beginning a blood transfusion what assessment of the patient will the nurse make?
Correct Answer
D. Vital signs
Explanation
Baseline vital signs should be taken for comparison in case of adverse reaction.
12.
A blood transfusion is ordered for a patient. As the nurse explains the procedure, the patient advises that he has had an adverse reaction during a previous blood transfusion. What would be appropriate action for the nurse to take?
Correct Answer
B. Hold the transfusion and inform the Doctor of previous reaction
Explanation
The appropriate action for the nurse to take would be to hold the transfusion and inform the doctor of the patient's previous adverse reaction. This is important because the patient's safety is paramount, and the doctor needs to be aware of the potential risk before proceeding with the transfusion.
13.
An RN requests the LPNs assistance, as policy requires two nurses be involved in the administration of a blood transfusion. The LPN observes that the patient's date of birth on the blood bag is incorrect. What would be the appropriate action for the LPN?
Correct Answer
D. Notify the RN of the discrepancy and do not administer the blood. Inform the blood bank and return the blood to the bank
Explanation
Any discrepancy between the patient information and the information on the blood bag requires that the blood is not administered, the blood bank is notified, and the blood is returned.
14.
The LPN requests that an RN assists in beginning a blood transfusion. After successfully identifying the patient and confirming that the information on the blood bag is correct the infusion is started. What would be the appropriate action for the LPN to take next?
Correct Answer
B. Remain with patient and take vital signs 15 minutes into the transfusion, observing for adverse reactions
Explanation
Only a small amount of blood will trigger a hemolytic transfusion reaction. Most adverse reactions occur within the first 15 minutes. Signs & symptoms include hypotension, fever, tachycardia and tachypnea which can be observed when taking vital signs. Remaining with the patient enables early detection which can minimize complications
15.
A patient receiving a blood transfusion begins to complain of low back pain. You observe that he begins to wheeze, has chills, and is SOB. The nurse would know that this is probably what type of reaction?
Correct Answer
B. Hemolytic transfusion reaction
Explanation
Signs and symptoms of a hemolytic transfusion reaction are low back or chest pain, hypotension, fever, chills, tachycardia, tachypnea, wheezing, edema, cough, hives, N/V. An anaphylactic reaction would result in narrowing of the bronchial, wheezing and respiratory arrest.
16.
A patient arrives to the emergency room and has a normal blood volume but has a decrease in RBCs and Hgb, What type of blood transfusion would they need?
Correct Answer
A. Packed red blood cells
Explanation
Packed red blood cells contain no plasma and are used when blood volume is normal. Platelets are given to a patient with active bleeding and a low platelet count. Plasma is given to patients with bleeding disorders and are used to replace blood volume. Frozen red blood cells are taken from a patient prior to surgery.
17.
A patient with hemophilia would receive what type of transfusion?
Correct Answer
B. Cryoprecipitates
Explanation
Cryoprecipitates have a concentration of specific clotting factors that are used for patients with hemophilia
18.
A patient with a scheduled surgery in which blood loss is expected would most likely receive what type of blood transfusion?
Correct Answer
A. Frozen red blood cells
Explanation
Frozen red blood cells are taken from the patient and saved for surgery in order to help prevent hemolytic transfusion reaction. This process is called auto transfusion
19.
What are IgE antibodies responsible for?
Correct Answer
D. Response to allergic reactions and cause release of histamine which cause an inflammatory response
Explanation
IgE antibodies are important in allergic reactions. IgG antibodies cross the placenta to provide immunity to newborns and also provide immunity after a vaccine or illness. IgM antibodies are produced first during an infection.
20.
Which cells are responsible for producing antibodies?
Correct Answer
D. B cells
Explanation
B cells that become plasma cells are capable of producing millions of different antibodies. T cells directly attach a foreign antigen. Natural killer cells release toxins that result in cytolysis.
21.
Many studies show that breastfeeding a newborn provides them with antibodies that help protect them against infection. What type of immunity is this?
Correct Answer
A. Naturally acquired passive immunity
Explanation
Passive immunity occurs when antibodies are NOT produced by the person. Active immunity occurs when a person produces their own antibodies due to illness or vaccine. Naturally acquired passive immunity is a result in placental or breast milk transmission from a mother to newborn.
22.
Exposure to a small amount of live antigens or a large number of dead antigens results in this type of immunity?
Correct Answer
B. Artificially acquired active immunity
Explanation
Artificially acquired active immunity refers to the immunity that is developed when a person is intentionally exposed to a small amount of live antigens or a large number of dead antigens. This exposure stimulates the person's immune system to produce antibodies and memory cells, providing long-term protection against future infections. This type of immunity is different from naturally acquired active immunity, which occurs when a person is exposed to antigens through natural infection.
23.
A 14 y/o that had chicken pox when she was 9 has developed what type of immunity?
Correct Answer
C. Naturally acquired active immunity
Explanation
The 14-year-old who had chickenpox when she was 9 has developed naturally acquired active immunity. This means that her immune system has produced antibodies in response to the infection, providing long-term protection against future chickenpox infections.
24.
How long does passive immunity last?
Correct Answer
A. Temporary
Explanation
Passive immunity is acquired through the transfer of antibodies from another source, such as through breastfeeding or receiving a vaccine. Unlike active immunity, which is developed by the body's own immune system, passive immunity is temporary because the transferred antibodies eventually break down and are eliminated from the body. Therefore, the correct answer is "Temporary."
25.
The ability to destroy pathogens, foreign materials, or prevent future invasion by the same organism is called?
Correct Answer
C. Immunity
Explanation
Immunity refers to the body's ability to defend itself against pathogens, foreign materials, or prevent future invasion by the same organism. It involves the recognition and response to specific antigens, which can be achieved through the production of antibodies or activation of immune cells. Immunity plays a crucial role in protecting the body from infections and diseases, and can be acquired naturally or through vaccination.
26.
A patient with AIDS has a nursing diagnosis of imbalanced nutrition: less than body requirements. The nurse plans which of the following goals with this patient?
Correct Answer
D. Eat small, frequent meals throughout the day
Explanation
Patient with imbalance nutrition should eat small frequent meals throughout the day that are high calorie/high protein. Anti-emetics should be given for N/V as well as vitamin/nutritional supplements
27.
A patient with AIDS is experiencing shortness of breath related to Pneumocystis jiroveci pneumonia. Which measure should the nurse include in the plan of care to assist the patient in performing activities of daily living?
Correct Answer
A. Provide supportive care with hygiene needs
Explanation
Providing supportive care with hygiene needs reduces the patient's physical and emotional energy demands and conserves energy resources for breathing.
28.
A patient who was tested for HIV after a recent exposure had a negative result. During the post-test counseling session, the nurse tells the patient which of the following?
Correct Answer
A. The test should be repeated in 6 months
Explanation
Test should be repeated in 6 months due to a possible false-negative result early in the infection
29.
A patient is diagnosed with late stage HIV. She and her family are extremely upset about the diagnosis. The priority psychosocial nursing intervention for the client and family is to?
Correct Answer
C. Encourage the patient and family to discuss their feelings about the disease
Explanation
Discussing feeling about the disease is a psychosocial intervention
30.
A patient is diagnosed with HIV. The nurse prepares a care plan for the patient knowing that HIV is primarily a condition in which?
Correct Answer
A. Immunosuppression occurs and is indicated by a T4 lympHocyte count of less than 200/mm3
Explanation
HIV causes immunosuppression and is indicated by a T4 lymphocyte count of less than 200/mm3. Although bacterial, fungal, and protozoa infections can occur, these occur as opportunistic infection as a result of immunosuppression
31.
The nurse understands that the client with pernicious anemia will have which distinguishing laboratory finding?
Correct Answer
B. Intrinsic factor, absent
Explanation
Pernicious anemia is due to antibodies that destroy gastric parietal cells leading to a decreased production of intrinsic factor.
32.
A patient with pernicious anemia asks why she must take vitamin B12 injections for the rest of her life. What is the nurse's best response?
Correct Answer
B. "Your vitamin deficiency is an inability to absorb the vitamin because the stomach is not producing sufficient intrinsic factor."
Explanation
Patients with pernicious anemia have deficient production of intrinsic factor in the stomach, which is needed for the body to absorb vitamin B12
33.
A nurse is assisting a patient diagnosed with pernicious anemia in selecting dinner. What would supply the best source of vitamin B12?
Correct Answer
D. Meats and dairy products
Explanation
Good sources of vitamin B12 include meats and dairy products. whole grains are a good source of thiamine. Green leafy vegetables are a good source of niacin and folate. Broccoli and brussel sprouts are a good source of vitamin C
34.
The LPN is caring for a patient diagnosed with pernicious anemia. Which nursing interventions would be appropriate? (select all that apply)
Correct Answer(s)
A. Monitor O2 Sat & keep HOB elevated
C. Assist with ambulation
D. Provide frequent rest periods
Explanation
Patients O2 should be monitored due to lack of oxygen in the blood and tissues. Fatigue due to lack of oxygen will occur, so ensure that patient has frequent rest periods. Assisting with ambulation will help to prevent falls due to fatigue.
35.
Which of the following is a sign or symptom of pernicious anemia?
Correct Answer
A. Glossitis
Explanation
Glossitis refers to the inflammation of the tongue, which can be a sign or symptom of pernicious anemia. Pernicious anemia is a condition characterized by a deficiency in vitamin B12, which can lead to various symptoms including glossitis. The inflammation of the tongue can cause it to appear swollen, red, and smooth. It may also be painful and can affect a person's ability to speak and eat. Therefore, glossitis is a relevant sign or symptom of pernicious anemia.
36.
The nurse is assisting with data collection. Which of the following past surgeries found in the history may influence immune system dysfunction?
Correct Answer
A. Splenectomy
Explanation
Removal of the spleen results in altered lymphocyte and plasma cell production which affects the humoral ummune response.
37.
What would be the appropriate treatment for a patient whose spleen is enlarged or whose spleen function is causing too many RBCs & Platelets to be removed from the blood would?
Correct Answer
D. Splenectomy
Explanation
Splenectomy would be the appropriate treatment for a patient whose spleen is enlarged or whose spleen function is causing too many RBCs and platelets to be removed from the blood. A splenectomy is the surgical removal of the spleen, which helps to alleviate the excessive removal of red blood cells and platelets from the bloodstream. This procedure can effectively treat conditions such as an enlarged spleen, certain blood disorders, and immune system disorders.
38.
A nurse monitoring a postoperative patient after a splenectomy notes that the patient's temperature is 102. What would be the appropriate action for the nurse to take?
Correct Answer
B. Notify the MD
Explanation
MD should be notified for any temperature over 101. TCDB would be appropriate for patients with a low grade fever.
39.
A nurse is giving discharge instruction to a patient that has had a splenectomy. What would NOT be part of the patient teaching given by the nurse?
Correct Answer
C. The kidneys will now take over the functions of the spleen
Explanation
The liver and red bone marrow will remove RBCs from circulation. A person without a spleen is not more susceptible to infections such as flu and pneumonia. Abdominal pain may be due to formation of a fistula due to pancreatitis. Overwhelming Post Splenectomy Infection (OPSI) can occur up to 20 years post op which is caused by strep & flu
40.
A 69 y/o male arrives to the emergency department with a flu-like symptoms and a fever. His wife states that he has had a splenectomy in 14 years ago. You would assess that the patient is most likely suffering from?
Correct Answer
A. Overwhelming Post Splenectomy Infection
Explanation
OPSI begins with a fever and malaise and quickly progresses to sepsis and death within a few hours. Strep & Flu are the #1 causes
41.
A patient is pre-op for a splenectomy. What would most likely be administered prior to surgery?
Correct Answer
D. Both A and C
Explanation
Pre-op care for a patient having a splenectomy include blood transfusion if they anemic and vitamin K for bleeding.
42.
Which of the following is NOT a function of blood?
Correct Answer
B. Filter pathogens
Explanation
The lymphatic system is responsible for filtering pathogens. Blood transports oxygen, nutrients, and waste products. Blood regulates body temperature. Blood also is involved with providing transport of WBCs and platelets for protection against foreign antigens and bleeding.
43.
A patient's CBC results show that she has a RBC level of 3.2 million/mm3. The nurse knows that this is called?
Correct Answer
D. Erythropenia
Explanation
Erythropenia is the decrease in RBC level. Leukopenia is the decrease of WBCs. Polycythemia is the excess of RBCs. Leukemia is an increase in immature WBCs
44.
A patient suffering from dehydration would be expected to have which abnormal CBC result?
Correct Answer
A. 63% Hematocrit level
Explanation
The normal Hematocrit level is 38 - 49%. An elevated percentage of hematocrit would indicate dehydration.
45.
The nurse is preparing to teach a client with microcytic hypochromic anemia about the diet to follow after discharge. which of the following foods should be included in the diet?
Correct Answer
A. Eggs
Explanation
Foods high in iron include eggs, organ and muscle meats, shellfish, shrimp, tuna, whole-grain and fortified cereals and breads, legumes, nuts, dried fruits, beans, oatmeal, and sweet potatoes
46.
A nurse devises a teaching plan for a patient with aplastic anemia. Which of the following is the most important concept to teach for health maintenance?
Correct Answer
B. Avoid exposure to others with acute infection
Explanation
Patients with aplastic anemia are severely immunocompromised and at risk for infection and death related to bone marrow suppression. Strict aseptic technique and Isolation precautions to prevent infection are highest priority
47.
A vegetarian patient meets with a nutritional counselor for anemia. What statement indicates that further counseling is needed?
Correct Answer
C. "I can drink coffee or tea with meals."
Explanation
Coffee and tea increase GI motility and inhibit absorption of nonheme iron. Dried fruits are a nonanimal iron source. Cooking acid-based foods in iron cookware adds iron to the diet. Iron absorption is increased when foods high in vitamin C are consumed.
48.
A 3 day post-op patient has a hematocrit level of 34%. The nurse observes that the hematocrit level the prior day was 36%. RBC and hemoglobin levels have remained at 4.5 million/mm3 and 11.9 g/dL, respectively. Which intervention is appropriate?
Correct Answer
C. Continue to monitor vital signs
Explanation
The decrease in hematocrit level is a normal response. Immediately after surgery a patient's hematocrit level indicated a false high value due to the body compensating for the sudden loss of fluid. By the 3rd day post-op bleeding is not likely.
49.
A nurse is going to administer an epogen injection. What laboratory value should the nurse assess before giving the injection?
Correct Answer
A. Hematocrit
Explanation
Epogen is a form of erythropoietin, which stimulated production of RBCs which would cause the hematocrit level to rise.
50.
Which of the following is a late symptom of polycythemia vera?
Correct Answer
C. Pruritus
Explanation
Pruritus is a late symptom that results from abnormal histamine metabolism. Headache, dizziness and shortness of breath are early signs