HESI LPN
Medical Surgical HESI
1. A young adult client, admitted to the emergency department following a motor vehicle collision, is transfused with 4 units of PRBCs. The client’s pretransfusion hematocrit is 17%. Which hematocrit value should the nurse expect the client to have after all PRBCs have been transfused?
- A. 23%
- B. 25%
- C. 27%
- D. 29%
Correct answer: D
Rationale: One unit of PRBCs typically raises the hematocrit by 3%. Since the client received 4 units, the hematocrit is expected to increase by approximately 12% (4 units x 3% per unit). Therefore, the nurse should expect the client's hematocrit to be 29% after all PRBCs have been transfused. Choices A, B, and C are incorrect as they do not account for the cumulative effect of multiple PRBC units on the hematocrit level.
2. A teenage girl has been placed in a brace for the treatment of scoliosis, the most common skeletal deformity of adolescence. The family asks what they can do to be more supportive. What suggestion from the nurse is the most appropriate?
- A. Enrolling her in a health club
- B. Taking her to the mall in a wheelchair
- C. Purchasing clothes to disguise the brace
- D. Spending a majority of their time with her
Correct answer: C
Rationale: The most appropriate suggestion from the nurse is to recommend purchasing clothes to disguise the brace. Adolescents with scoliosis often have body image concerns and wish to fit in with their peers. By providing clothes that help conceal the brace, the family can support the teenage girl's emotional well-being. Choices A, B, and D do not directly address the adolescent's concerns about body image and fitting in, making them less appropriate in this situation.
3. How is gastroesophageal reflux (GER) typically treated in infants?
- A. By placing the infant NPO
- B. By thickening the formula or breast milk with cereal
- C. By placing the infant to sleep on the side
- D. By switching the infant to cow's milk
Correct answer: B
Rationale: Gastroesophageal reflux (GER) in infants is typically treated by thickening the formula or breast milk with cereal. This helps reduce reflux episodes by making the feedings heavier and less likely to come back up. Placing the infant NPO (nothing by mouth) is not the typical treatment for GER as infants need proper nutrition for growth. Placing the infant to sleep on the side is not recommended due to the risk of SIDS; infants should be placed on their back to sleep. Switching the infant to cow's milk is also not a treatment for GER, as cow's milk can be harder to digest and may exacerbate symptoms.
4. The nurse is teaching a client about coronary artery disease (CAD) preventive health. Which behavior stated by the client indicates a need for additional information and teaching?
- A. Increasing physical activity.
- B. Eating a low-fat diet.
- C. Decreasing the number of cigarettes smoked per day.
- D. Monitoring blood pressure regularly.
Correct answer: C
Rationale: The correct answer is C. Decreasing the number of cigarettes smoked per day is not sufficient for CAD prevention. Smoking cessation is crucial in reducing the risk of CAD. While increasing physical activity, eating a low-fat diet, and monitoring blood pressure regularly are all positive behaviors for CAD prevention, quitting smoking should be emphasized due to its significant impact on cardiovascular health.
5. A male client with acquired immune deficiency syndrome (AIDS) and Pneumocystis carinii pneumonia has a CD4+ T cell count of 200 cells/microliter. The client asks the nurse why he keeps getting these massive infections. Which pathophysiologic mechanism should the nurse describe in response to the client's question?
- A. Bone marrow suppression of white blood cells causes insufficient cells to phagocytize organisms.
- B. Exposure to multiple environmental infectious agents overburdens the immune system until it fails.
- C. The humoral immune response lacks B cells that form antibodies and opportunistic infections result.
- D. Inadequate numbers of T lymphocytes are available to initiate cellular immunity and macrophages.
Correct answer: D
Rationale: With a CD4+ T cell count of 200 cells/microliter, the client's immune system is severely compromised, leading to opportunistic infections.
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