Nokea
Which of the following procedures always requires surgical asepsis?
- A. Vaginal instillation of conjugated estrogen
- B. Urinary catheterization
- C. Nasogastric tube insertion
- D. Colostomy irrigation
Correct Answer: B
Rationale: Surgical asepsis, which involves maintaining a sterile field and preventing contamination in a surgical setting, is required for urinary catheterization as it involves entering a sterile body cavity. Vaginal instillation of conjugated estrogen, nasogastric tube insertion, and colostomy irrigation do not always require surgical asepsis as they involve different levels of sterility and infection control measures.
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A patient is admitted to the hospital with complaints of nausea, vomiting, diarrhea, and severe abdominal pain. Which of the following would immediately alert the healthcare provider that the patient has bleeding from the GI tract?
- A. Complete blood count
- B. Guaiac test
- C. Vital signs
- D. Abdominal girth
Correct Answer: B
Rationale: A positive guaiac test is used to detect the presence of occult (hidden) blood in the stool, suggesting bleeding from the gastrointestinal tract. It is a rapid screening test that can provide immediate information to the healthcare provider about possible gastrointestinal bleeding in patients presenting with symptoms such as nausea, vomiting, diarrhea, and severe abdominal pain.
Which of the following blood tests should be performed before a blood transfusion?
- A. Prothrombin and coagulation time
- B. Blood typing and cross-matching
- C. Bleeding and clotting time
- D. Complete blood count (CBC) and electrolyte levels
Correct Answer: B
Rationale: Before administering a blood transfusion, it is crucial to perform blood typing and cross-matching to ensure compatibility between the donor's blood and the recipient's blood. This process helps prevent adverse reactions such as transfusion reactions, which can be life-threatening. Prothrombin and coagulation time, bleeding and clotting time, as well as CBC and electrolyte levels are important tests in other clinical contexts, but for blood transfusions, blood typing and cross-matching are essential to ensure patient safety.
Which of the following is a sign or symptom of a hemolytic reaction to a blood transfusion?
- A. Hemoglobinuria
- B. Chest pain
- C. Urticaria
- D. Distended neck veins
Correct Answer: A
Rationale: Hemoglobinuria is a characteristic sign of a hemolytic reaction to a blood transfusion. Hemolytic reactions can lead to the destruction of red blood cells, causing the release of hemoglobin into the urine, which presents as hemoglobinuria. Chest pain, urticaria, and distended neck veins are not specific signs of a hemolytic reaction and may be associated with other conditions or reactions.
All of the following interventions are correct when using the Z-track method of drug injection except:
- A. Prepare the injection site with alcohol
- B. Use a needle that is at least 1" long
- C. Aspirate for blood before injection
- D. Rub the site vigorously after the injection to promote absorption
Correct Answer: D
Rationale: When using the Z-track method of drug injection, it is important to prepare the injection site with alcohol to ensure cleanliness, use a needle that is at least 1" long to reach the muscle tissue, and aspirate for blood before injection to verify correct needle placement. However, rubbing the site vigorously after the injection is not recommended as it can cause medication to leak into subcutaneous tissue, compromising the medication's intended absorption and efficacy.
When is the most appropriate time for obtaining a sputum specimen for culture?
- A. Early in the morning
- B. After the patient eats a light breakfast
- C. After aerosol therapy
- D. After chest physiotherapy
Correct Answer: A
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.