Nokea
Which of the following white blood cell (WBC) counts clearly indicates leukocytosis?
- A. 4,500/mm³
- B. 7,000/mm³
- C. 10,000/mm³
- D. 25,000/mm³
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
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Which deficiency is most commonly seen in individuals with alcohol use disorder?
- A. Thiamine
- B. Riboflavin
- C. Pyridoxine
- D. Pantothenic acid
Correct Answer: A
Rationale: Thiamine deficiency, also known as Vitamin B1 deficiency, is the most common vitamin deficiency seen in individuals with alcohol use disorder. Chronic alcohol consumption can lead to decreased thiamine absorption and utilization, as well as poor dietary intake. Thiamine deficiency can result in serious neurological complications, such as Wernicke-Korsakoff syndrome, making it essential to address thiamine supplementation in individuals with alcohol use disorder.
Mrs. Mitchell has been given a copy of her diet. The nurse discusses the foods allowed on a 500-mg low sodium diet. These include:
- A. A ham and Swiss cheese sandwich on whole wheat bread
- B. Mashed potatoes and broiled chicken
- C. A tossed salad with oil and vinegar and olives
- D. Chicken bouillon
Correct Answer: B
Rationale: The correct answer is B: Mashed potatoes and broiled chicken. Both mashed potatoes and broiled chicken are typically low in sodium content, making them suitable choices for a 500-mg low sodium diet. The other options, such as a ham and Swiss cheese sandwich on whole wheat bread, a tossed salad with oil and vinegar and olives, and chicken bouillon, may contain higher amounts of sodium and are not typically recommended for a low sodium diet.
The physician orders a maintenance dose of 5,000 units of subcutaneous heparin (an anticoagulant) daily. Nursing responsibilities for Mrs. Mitchell now include:
- A. Reviewing daily activated partial thromboplastin time (APTT) and prothrombin time.
- B. Reporting an APTT above 45 seconds to the physician
- C. Assessing the patient for signs and symptoms of frank and occult bleeding
- D. All of the above
Correct Answer: D
Rationale: The correct answer is D. When a physician orders a maintenance dose of subcutaneous heparin, nursing responsibilities include reviewing daily activated partial thromboplastin time (APTT) and prothrombin time to monitor the patient's coagulation status, reporting an APTT above 45 seconds to the physician as it may indicate a risk of bleeding, and assessing the patient for signs and symptoms of frank and occult bleeding, which are potential adverse effects of anticoagulant therapy. Therefore, all the options listed are essential nursing responsibilities when a patient is on subcutaneous heparin therapy.
A patient with no known allergies is to receive penicillin every 6 hours. When administering the medication, the nurse observes a fine rash on the patient's skin. The most appropriate nursing action would be to:
- A. Withhold the medication and notify the physician
- B. Administer the medication and notify the physician
- C. Administer the medication with an antihistamine
- D. Apply corn starch soaks to the rash
Correct Answer: A
Rationale: In this scenario, the appearance of a rash after administering penicillin, even in a patient with no known allergies, is concerning for a potential allergic reaction. The appropriate action for the nurse to take is to withhold the medication and notify the physician. This precaution is necessary to prevent further administration of a medication that may be causing an adverse reaction, as allergic reactions can range from mild to severe and require immediate intervention.
Which of the following is not a cause of tachycardia?
- A. Fever
- B. Exercise
- C. Sympathetic nervous system stimulation
- D. Parasympathetic nervous system stimulation
Correct Answer: D
Rationale: Tachycardia is an increased heart rate, and it can be caused by various factors such as fever, exercise, and sympathetic nervous system stimulation, all of which tend to increase heart rate. However, parasympathetic nervous system stimulation typically slows the heart rate, making it the exception among the choices provided. Thus, parasympathetic nervous system stimulation is not a cause of tachycardia.