Nokea
Where is the Loop of Henle located in the body?
- A. Liver
- B. Kidney
- C. Heart
- D. Ear
Correct Answer: B
Rationale: The Loop of Henle is a crucial structure found in the kidneys. It plays a vital role in the concentration of urine by creating a concentration gradient in the renal medulla. Choices A, C, and D are incorrect because the Loop of Henle is not located in the liver, heart, or ear. Understanding the anatomical location of the Loop of Henle is essential in comprehending renal physiology and the mechanism of action of diuretic medications.
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A second-year nursing student has just suffered a needlestick while working with a patient that is positive for AIDS. Which of the following is the most significant action that the nursing student should take?
- A. Immediately see a social worker
- B. Start prophylactic AZT treatment
- C. Start prophylactic Pentamidine treatment
- D. Seek counseling
Correct Answer: B
Rationale: Starting prophylactic AZT treatment is the most critical intervention in this scenario. Azidothymidine (AZT) is an antiretroviral medication used to prevent and treat HIV/AIDS by reducing the replication of the virus. Post-exposure prophylaxis (PEP) for HIV involves taking medication to suppress the virus and prevent infection after exposure. PEP should be initiated within 72 hours of potential HIV exposure to be effective. Seeking treatment quickly is crucial to enhance its effectiveness. Seeing a social worker (Choice A) may be helpful for emotional support but is not the immediate priority. Pentamidine treatment (Choice C) is not indicated for post-exposure prophylaxis for HIV. Seeking counseling (Choice D) is important for the nursing student's emotional well-being but does not address the urgent need for post-exposure prophylaxis to prevent HIV transmission.
Your patient ate an 8-ounce cup of Italian ice. How much will you record on the patient's Intake and Output form in terms of this patient's fluid intake?
- A. 240 cc
- B. 120 cc
- C. 8 cc
- D. 0 cc because Italian ice is not a fluid
Correct Answer: A
Rationale: The correct answer is 240 cc. Italian ice is considered a fluid, so you would record the intake of 240 cc. Choice B (120 cc) and Choice C (8 cc) are incorrect as they do not reflect the correct amount of fluid intake from an 8-ounce cup of Italian ice. Choice D (0 cc) is incorrect because Italian ice does count as a fluid intake and should be recorded as such.
A 75-year-old man with a history of hypertension was recently changed to a new antihypertensive
drug. He reports feeling dizzy at times. How would the nurse evaluate his blood pressure?
- A. Blood pressure and pulse should be recorded in the supine, sitting, and standing
positions. - B. The patient should be directed to walk around the room and his blood pressure
assessed after this activity. - C. Blood pressure and pulse are assessed at the beginning and at the end of the
examination. - D. Blood pressure is taken on the right arm and then 5 minutes later on the left arm.
Correct Answer: A
Rationale: Orthostatic vital signs should be taken when the person is hypertensive or is taking antihypertensive
medications, when the person reports fainting or syncope, or when volume depletion is suspected.
The blood pressure and pulse readings are recorded in the supine, sitting, and standing positions.
A child is admitted to the hospital several days after stepping on a sharp object that punctured her athletic shoe and entered the flesh of her foot. The physician is concerned about osteomyelitis and has ordered parenteral antibiotics. Which of the following actions is done immediately before the antibiotic is started?
- A. The admission orders are written.
- B. A blood culture is drawn.
- C. A complete blood count with differential is drawn.
- D. The parents arrive.
Correct Answer: B
Rationale: Before starting antibiotics, a blood culture should be drawn to identify the causative organism. This step is crucial as antibiotics may interfere with the identification process. Drawing a complete blood count with differential or writing admission orders are important steps in patient care but are not as critical as obtaining a blood culture to guide appropriate antibiotic therapy. The arrival of the parents is not directly related to the immediate action required before starting antibiotics in this scenario.
What is the correct action regarding thigh pressure when comparing it to arm pressure in an adolescent with high blood pressure?
- A. The popliteal artery should be auscultated to obtain thigh pressure.
- B. The best position to measure thigh pressure is the prone position.
- C. If the blood pressure in the arm is high in an adolescent, then it should be compared with the thigh pressure.
- D. Thigh pressure is generally higher than arm pressure due to the proximity to the heart and the size of the popliteal vessels.
Correct Answer: C
Rationale: When blood pressure measured in the arm is significantly elevated, especially in adolescents and young adults, it is crucial to compare it with thigh pressure to assess for coarctation of the aorta. The popliteal artery, not the femoral artery, should be auscultated for the thigh pressure reading as the femoral artery is closer to the placement of the blood pressure cuff. Generally, thigh pressure is higher than arm pressure; however, if there is coarctation of the artery, arm pressures can be higher than thigh pressures. The preferred position for measuring thigh pressure is the prone position, not supine, with the knee slightly bent to facilitate accurate readings.