HESI RN
HESI Medical Surgical Specialty Exam
1. A client is brought to the emergency department by a neighbor. The client is lethargic and has a fruity odor on the breath. The client’s arterial blood gas (ABG) results are pH 7.25, PCO2 34 mm Hg, PO2 86 mm Hg, HCO3 14 mEq/L. Which of the following acid-base disturbances does the nurse recognize in these results?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct answer: A
Rationale: The correct answer is 'Metabolic acidosis.' Metabolic acidosis is characterized by a low pH (<7.35) and a low bicarbonate level (HCO3 <22 mEq/L). In this case, the client's ABG results show a pH of 7.25 and an HCO3 level of 14 mEq/L, indicating metabolic acidosis. The PCO2 of 34 mm Hg is normal, ruling out respiratory acidosis or alkalosis. The PO2 of 86 mm Hg is also within the normal range and is not indicative of a respiratory problem. Therefore, the client is experiencing metabolic acidosis based on the ABG results provided.
2. A client who underwent preadmission testing 1 week before surgery had blood drawn for several serum laboratory studies. Which abnormal laboratory results should the nurse report to the surgeon’s office? Select all that apply.
- A. Hematocrit 30%
- B. Sodium 141 mEq/L
- C. Hemoglobin 8.9 g/dL
- D. Platelets 210,000 cells/mm3
Correct answer: C
Rationale: The correct answer is C. Hemoglobin level of 8.9 g/dL is below the normal range, indicating anemia. Anemia can affect the body's ability to carry oxygen, impacting surgical outcomes. Hematocrit level is an indirect measure of red blood cells, which also reveals anemia when low. Sodium level of 141 mEq/L and platelet count of 210,000 cells/mm3 are within normal ranges and do not require immediate reporting. Abnormal sodium levels can lead to various issues, but in this scenario, it is not a concern for surgical readiness. Platelet count is vital for blood clotting, and a count of 210,000 cells/mm3 is considered normal, so it does not need urgent attention.
3. A client admitted from a nursing home after several recent falls needs a urine sample for culture and sensitivity. What should the nurse complete first?
- A. Obtain urine sample for culture and sensitivity.
- B. Administer intravenous antibiotics.
- C. Encourage protein intake and additional fluids.
- D. Consult physical therapy for gait training.
Correct answer: A
Rationale: In this scenario, the priority intervention is to obtain a urine sample for culture and sensitivity. Older adults with recent falls may have atypical symptoms of urinary tract infection (UTI), which can present as new-onset confusion or falling. It is crucial to rule out UTI before initiating antibiotics. While administering antibiotics, encouraging protein intake, fluids, and consulting physical therapy are important interventions, they should follow the urine sample collection to ensure accurate diagnosis and appropriate treatment.
4. A patient taking trimethoprim-sulfamethoxazole (TMP-SMX) to treat a urinary tract infection complains of a sore throat. The nurse will contact the provider to request an order for which laboratory test(s)?
- A. Complete blood count with differential
- B. Throat culture
- C. Urinalysis
- D. Coagulation studies
Correct answer: A
Rationale: When a patient taking trimethoprim-sulfamethoxazole (TMP-SMX) for a urinary tract infection presents with a sore throat, the nurse should request a complete blood count with differential. TMP-SMX can cause life-threatening adverse effects such as agranulocytosis, a condition characterized by a low white blood cell count, which can manifest as a sore throat. Ordering a complete blood count with differential helps assess the patient's white blood cell count to detect any potential serious adverse effects. Throat culture (Choice B) is not indicated unless there are specific signs of a throat infection. Urinalysis (Choice C) is not relevant for assessing a sore throat. Coagulation studies (Choice D) are not typically indicated for a sore throat symptom.
5. A client with a history of type 1 diabetes Mellitus (DM) and asthma is readmitted to the unit for the third time in two months with a current fasting blood sugar (FBS) of 325mg/dl (18mmol/L SI). The client describes to the nurse not understanding why the blood glucose level continues to be out of control. Which interventions should the nurse implement?
- A. Have the client describe a typical day at work, home, and social activities
- B. Determine if the client is using a new insulin needle for each administration
- C. Evaluate the client's asthma medications that can elevate blood glucose
- D. Have the client demonstrate the technique used to monitor blood glucose levels
Correct answer: A
Rationale: The correct answer is to have the client describe a typical day at work, home, and social activities. By understanding the client's daily routine, the nurse can gain valuable insights into lifestyle factors that may be impacting blood glucose control. This information is essential for identifying potential triggers or patterns contributing to the elevated blood sugar levels. Option B, determining if the client is using a new insulin needle for each administration, focuses more on the technical aspect of insulin delivery and is not directly related to daily activities affecting blood glucose levels. Option C, evaluating the client's asthma medications that can elevate blood glucose, could be relevant but is not as directly linked to the client's lifestyle choices as option A. Option D, having the client demonstrate the technique for monitoring blood glucose levels, is important for assessing their skills but does not provide information on daily activities that may be influencing blood sugar levels.
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