D454 - Adult Health III

Question 21: A patient presents with persistent headaches, blurred vision, and facial flushing. Laboratory results reveal a significantly elevated hemoglobin and hematocrit. The nurse suspects polycythemia vera. Which treatment should the nurse anticipate as the primary intervention to reduce the immediate risk associated with this condition?

Aggressive intravenous fluid administration to dilute the concentrated blood and lower the hematocrit

Therapeutic phlebotomy to reduce the excessive red blood cell volume and decrease blood viscosity

Initiation of erythropoietin injections to regulate the overactive bone marrow production

Administration of iron supplements to help the bone marrow produce healthier red blood cells

Question 22: A nurse is admitting a patient with newly diagnosed polycythemia vera and needs to complete a thorough assessment. Based on the known complications of thickened blood and increased red cell mass, which assessment question is most important for the nurse to ask this patient?

Have you been experiencing any changes in your vision, such as blurring or double vision

Have you been having frequent episodes of diarrhea or changes in your bowel habits

Have you noticed any changes in your appetite or experienced unintentional weight loss recently

Have you had any recent skin rashes or itching that is worse after bathing

Question 23: A patient with myelodysplastic syndrome has been receiving filgrastim to stimulate white blood cell production. The nurse needs to evaluate whether this medication is achieving its intended therapeutic effect. Which laboratory value is most appropriate for monitoring the effectiveness of filgrastim therapy?

The hemoglobin level, which indicates whether overall bone marrow production has improved across all cell lines

The platelet count, which shows whether the bone marrow is recovering its ability to produce all blood components

The serum iron level, which reflects whether the bone marrow has adequate resources for cell production

The absolute neutrophil count, which directly measures the white blood cell population that filgrastim targets

Question 24: A patient who underwent splenectomy two weeks ago calls the clinic reporting a fever and chills that started this morning. The nurse understands that this patient is at heightened risk for rapidly progressive infection. Which characteristic of post-splenectomy patients best explains why even a low-grade fever requires urgent medical evaluation?

The spleen produced all of the body's antibodies, so its removal leaves the patient with no immune defense at all

Splenectomy causes permanent neutropenia, meaning the patient has essentially no white blood cells to fight infection

Without the spleen, the body cannot filter encapsulated bacteria from the blood, making infections from organisms like Streptococcus pneumoniae potentially fatal within hours

The spleen was the only organ responsible for producing platelets, so its removal causes the patient to bleed internally during any infection

Question 25: A routine blood count on an otherwise healthy-appearing patient reveals unexpected abnormalities in multiple cell lines, raising suspicion for myelodysplastic syndrome. After a bone marrow biopsy confirms the diagnosis, the pathology report notes that blast cells have reached the critical threshold in the marrow. Which clinical decision is most directly guided by this finding?

Initiating high-intensity chemotherapy because a blast percentage at or above the threshold indicates aggressive disease requiring treatment

Switching the patient to a watchful waiting approach since elevated blasts indicate the disease is stabilizing

Starting iron supplementation to support the bone marrow in producing healthier replacement cells

Recommending immediate splenectomy to remove the organ that is trapping the abnormal blast cells

Question 26: A patient is brought to the emergency department after swallowing a large quantity of acetaminophen approximately ninety minutes ago. The physician orders a stat serum acetaminophen level. The nurse understands that this level cannot be accurately interpreted until a specific minimum time has elapsed since ingestion. Which nursing action demonstrates the best understanding of this principle?

Drawing the level immediately and plotting it on the Rumack-Matthew Nomogram to begin treatment planning

Waiting a full twenty-four hours before drawing the level to ensure the drug has been completely metabolized

Drawing the level at the four-hour mark post-ingestion because earlier levels may not reflect peak absorption and cannot be reliably plotted on the nomogram

Refusing to draw any level because acetaminophen toxicity can only be diagnosed based on the appearance of clinical symptoms

Question 27: A patient presents to the emergency department within one hour of an acetaminophen ingestion. The emergency physician orders activated charcoal. The nurse explains to the patient that this intervention works by which mechanism?

Binding to the acetaminophen still present in the gastrointestinal tract to prevent further absorption into the bloodstream

Breaking down the acetaminophen molecules in the stomach so they become non-toxic before entering the liver

Coating the stomach lining to create a protective barrier that blocks all medications from being absorbed

Stimulating the liver to produce more glutathione to neutralize the toxic metabolite before it causes damage

Question 28: A nursing student asks why the Rumack-Matthew Nomogram is considered essential in managing single acute acetaminophen ingestions. Which response by the clinical instructor best explains the role of this tool in guiding treatment decisions?

It measures the patient's glutathione levels directly and determines whether the liver can handle the ingestion without intervention

It predicts exactly how many days a patient will need to stay in the hospital based on the size of the ingestion

It calculates the exact dose of NAC that should be administered based on the patient's weight and liver enzyme levels

It plots the serum acetaminophen level against time since ingestion to determine whether the concentration falls in the toxic range requiring NAC treatment

Question 29: A patient arrives at the emergency department reporting an acetaminophen ingestion that occurred approximately five hours ago. A new nurse suggests administering activated charcoal. The charge nurse explains why this intervention is no longer appropriate. Which rationale best supports the charge nurse's decision?

Activated charcoal is only effective within the first one to two hours after ingestion because by five hours the acetaminophen has already been absorbed from the gastrointestinal tract

Activated charcoal is contraindicated in all acetaminophen overdoses regardless of timing because it interferes with NAC absorption

Charcoal must be mixed with NAC to be effective, and this combination is only stable during the first hour after preparation

Activated charcoal can only be given if the patient has not vomited, and all overdose patients experience vomiting by the second hour

Question 30: A pharmacology instructor asks students to explain what happens metabolically when acetaminophen overwhelms the body's primary detoxification pathways during an overdose. Which student response most accurately describes this dangerous shift?

The liver stops all metabolic activity and the unprocessed acetaminophen circulates indefinitely until it is removed by dialysis

The glucuronidation and sulfation pathways become saturated, forcing a much larger proportion of the drug through CYP450, which produces the toxic metabolite NAPQI at a rate that exceeds glutathione capacity

The kidneys take over metabolism of acetaminophen when the liver becomes saturated, producing a nephrotoxic waste product

The acetaminophen molecule spontaneously breaks apart in the bloodstream when concentrations become too high, releasing free radicals that attack all organ systems equally

Question 31: A nurse is reviewing the laboratory results of a patient admitted with fatigue and shortness of breath on exertion. The hemoglobin is significantly below normal, but the reticulocyte count is elevated. Which interpretation by the nurse best explains the relationship between these two findings?

The elevated reticulocyte count confirms that the bone marrow has failed and is releasing immature cells that cannot carry oxygen

The combination of low hemoglobin and high reticulocytes always indicates a laboratory error that should be repeated before clinical decisions are made

The reticulocyte count is unrelated to the hemoglobin level and likely represents a separate bone marrow disorder

The elevated reticulocyte count indicates the bone marrow is actively responding to the low hemoglobin by increasing red blood cell production

Question 32: A patient's blood work reveals a white blood cell count well below the normal range. The nurse understands that this finding, known as leukopenia, places the patient at greatest risk for which complication?

Infection because the body has insufficient white blood cells to mount an adequate immune defense

Excessive fluid retention caused by the loss of white blood cells that normally regulate fluid balance

Uncontrolled bleeding from minor cuts and procedures due to impaired clotting ability

Spontaneous bone fractures resulting from weakened skeletal structure when white blood cell production declines

Question 33: A nurse is caring for a patient whose platelet count has dropped significantly below the normal range. When planning care, which precaution is most essential for the nurse to implement to protect this patient?

Placing the patient on a high-protein diet to stimulate the liver to produce more clotting factors

Initiating strict infection control measures including reverse isolation and limiting all visitors

Encouraging vigorous physical activity to stimulate the bone marrow to release stored platelets

Implementing bleeding precautions such as using soft-bristled toothbrushes and avoiding intramuscular injections

Question 34: A clinical instructor presents a case where a patient's complete blood count shows anemia with a mean corpuscular volume well above the normal range. The instructor asks students what this finding indicates about the size of the red blood cells and which deficiencies should be investigated. Which student response is most accurate?

A high MCV indicates abnormally small red blood cells, which points toward iron deficiency as the most likely cause

MCV does not reflect red blood cell size and is only useful for monitoring the effectiveness of blood transfusions

A high MCV indicates abnormally large red blood cells, known as macrocytic anemia, which should prompt investigation into vitamin B twelve or folic acid deficiency

A high MCV means the red blood cells are a normal size but there are far too many of them, suggesting polycythemia

Question 35: A patient receiving intravenous heparin therapy has blood drawn for coagulation monitoring. The nurse knows that the specific laboratory test used to evaluate the therapeutic effectiveness of heparin is different from the test used to monitor warfarin. Which test does the nurse check for the heparin patient?

The activated partial thromboplastin time, also known as aPTT, which specifically reflects heparin's effect on the intrinsic clotting pathway

The PT and INR, which are the standard tests for all anticoagulant medications regardless of their mechanism

The serum fibrinogen level, which is the only test that accurately measures heparin's anticoagulant activity

The complete blood count with differential, which shows whether heparin has reduced the total number of clotting cells

Question 36: A patient diagnosed with folic acid deficiency anemia asks the nurse which foods they should include in their diet to help correct the deficiency alongside their prescribed supplementation. Which dietary recommendation by the nurse is most appropriate?

Increase intake of dairy products and cheese, which contain the highest natural concentrations of folic acid

Consume large quantities of citrus fruits because vitamin C is the same thing as folic acid

Focus on eating more leafy green vegetables, legumes, and fortified grain products, which are rich sources of folate

Eat primarily white rice and refined bread because the processing adds concentrated folate to these products

Question 37: A patient with newly diagnosed hemolytic anemia has visible jaundice of the skin and sclerae. The nurse is determining which laboratory value is the highest priority to assess in this patient. Which selection demonstrates the best clinical reasoning?

The white blood cell count to determine if the red blood cell destruction has triggered an immune response

The serum potassium level because red blood cell destruction releases dangerous amounts of electrolytes

The platelet count because hemolytic anemia always causes concurrent thrombocytopenia

The bilirubin level because it directly reflects the degree of red blood cell breakdown causing the patient's jaundice

Question 38: A nurse is planning activity guidelines for a patient with chronic hemolytic anemia who reports significant fatigue. Which approach to managing the patient's activity level reflects best practice?

Encouraging maximum physical exertion to build endurance and overcome the fatigue through cardiovascular conditioning

Placing the patient on complete bed rest until the hemoglobin returns to a normal level to prevent cardiac strain

Alternating periods of rest and activity throughout the day to manage fatigue while preventing the complications of immobility

Restricting all activities and assigning a sitter to perform every task for the patient until discharge

Question 39: A nurse is triaging several patients in a clinic setting. One patient has anemia but reports no symptoms and is functioning normally. Another patient with a similar type of anemia reports palpitations, dizziness, and severe fatigue that prevents daily activities. Based on understanding of anemia pathophysiology, which factor most likely explains the dramatic difference in symptom presentation between these two patients?

The degree of hemoglobin reduction, since symptoms typically become pronounced when hemoglobin falls below a certain threshold

The type of anemia determines symptoms exclusively, and iron deficiency always causes severe symptoms while B twelve deficiency never does

The symptomatic patient is likely exaggerating their symptoms because anemia never causes palpitations or dizziness

The symptomatic patient probably has a concurrent infection that is causing the symptoms independently of the anemia

Question 40: A nurse is reviewing laboratory results for two anemic patients. Patient A has small red blood cells with low serum iron. Patient B has large red blood cells with neurological symptoms including tingling in the feet. Based on these findings, which pair of diagnoses and treatments is most accurate?

Patient A has pernicious anemia needing injections, while Patient B has iron deficiency requiring oral supplements

Both patients have the same type of anemia and should receive identical treatment with oral iron supplements

Patient A likely has iron deficiency anemia treated with oral iron and vitamin C, while Patient B likely has pernicious anemia requiring B twelve injections

Patient A should receive B twelve injections and Patient B should receive folic acid tablets since neurological symptoms always indicate folate deficiency

D454 Adult Health III - Set 2 - Part 2