HESI RN
RN HESI Exit Exam
1. After multiple attempts to stop drinking, an adult male is admitted to the medical intensive care unit (MICU) with delirium tremens. He is tachycardic, diaphoretic, restless, and disoriented. Which finding indicates a life-threatening condition?
- A. Widening QRS complexes and flat T waves
- B. Tachycardia and elevated blood pressure
- C. Restlessness and anxiety
- D. Diaphoresis and dehydration
Correct answer: A
Rationale: The correct answer is A: Widening QRS complexes and flat T waves. In the context of an adult male with delirium tremens and symptoms like tachycardia, diaphoresis, restlessness, and disorientation, the presence of widening QRS complexes and flat T waves on an ECG suggests severe electrolyte imbalance, particularly hypokalemia. This severe electrolyte imbalance can lead to life-threatening arrhythmias such as ventricular tachycardia or fibrillation. Tachycardia and elevated blood pressure (choice B) can be expected in delirium tremens but do not directly indicate a life-threatening condition as widening QRS complexes and flat T waves do. Restlessness and anxiety (choice C) are common symptoms of delirium tremens but do not specifically signify a life-threatening condition. Diaphoresis and dehydration (choice D) are also common in delirium tremens but do not directly point towards a life-threatening electrolyte imbalance as widening QRS complexes and flat T waves do.
2. The healthcare provider prescribes ceftazidime (Fortaz) 35 mg every 8 hours IM for an infant. The 500 mg vial is labeled with the instruction to add 5.3 ml diluent to provide a concentration of 100 mg/ml. How many ml should the nurse administer for each dose?
- A. 0.35 ml
- B. 0.40 ml
- C. 0.50 ml
- D. 0.45 ml
Correct answer: B
Rationale: To calculate the volume to be administered for 35 mg of ceftazidime, divide the prescribed dose by the concentration: 35 mg / 100 mg/ml = 0.35 ml. Rounding off, the nurse should administer 0.4 ml for each dose. Choice A is incorrect as it doesn't consider rounding off. Choice C is incorrect because it's not the correct calculation. Choice D is incorrect as it doesn't reflect the accurate volume needed.
3. A client with gestational diabetes, at 39 weeks of gestation, is in the second stage of labor. After delivering the fetal head, the nurse recognizes that shoulder dystocia is occurring. What intervention should the nurse implement first?
- A. Prepare the client for an emergency cesarean birth
- B. Encourage the client to move to a hands-and-knees position
- C. Assist the client to sharply flex her thighs up against the abdomen
- D. Lower the head of the bed and apply suprapubic pressure
Correct answer: C
Rationale: In cases of shoulder dystocia, the priority intervention is to assist the client in sharply flexing her thighs up against the abdomen (McRoberts maneuver). This action helps to widen the pelvic outlet. Encouraging the client to move to a hands-and-knees position may also be beneficial in some cases but is not the first-line intervention. Preparing for an emergency cesarean birth and applying suprapubic pressure are not appropriate initial interventions for shoulder dystocia.
4. A 7-year-old boy is brought to the clinic because of facial edema. He reports that he has been voiding small amounts of dark, cloudy, tea-colored urine. The parents state that their son had a sore throat 2 weeks earlier, but it has resolved. After assessing the child's vital signs and weight, what intervention should the nurse implement next?
- A. Perform an otoscopic examination
- B. Measure the child's abdominal girth
- C. Collect a urine specimen for routine urinalysis
- D. Obtain a blood specimen for serum electrolytes
Correct answer: C
Rationale: Collecting a urine specimen for routine urinalysis is the next appropriate intervention. The symptoms described, including facial edema and tea-colored urine, are indicative of glomerulonephritis, a condition affecting the kidneys. A urine specimen can help assess renal function and the presence of blood and protein in the urine, which are common in glomerulonephritis. Performing an otoscopic examination (Choice A) is not relevant to the presenting symptoms. Measuring the child's abdominal girth (Choice B) is not necessary at this point as it does not directly address the urinary symptoms. Obtaining a blood specimen for serum electrolytes (Choice D) may provide information about electrolyte imbalances but is not the most appropriate initial step in this case.
5. A female client reports she has not had a bowel movement for 3 days, but now is defecating frequent small amounts of liquid stool. Which action should the nurse implement?
- A. Digitally check the client for a fecal impaction
- B. Administer a laxative to stimulate bowel movement
- C. Increase fluid intake to soften stool
- D. Perform a digital rectal examination
Correct answer: A
Rationale: The correct action for the nurse to implement is to digitally check the client for a fecal impaction. In this scenario, the client's presentation of frequent small amounts of liquid stool after a period of no bowel movement suggests a possible impaction. By performing a digital examination, the nurse can assess for the presence of a blockage that may be causing the symptoms. Administering a laxative (Choice B) without assessing for impaction can worsen the situation. Increasing fluid intake (Choice C) is generally beneficial for bowel health but may not address the immediate issue of a potential impaction. Performing a digital rectal examination (Choice D) is similar to Choice A but is more focused on assessing the rectum itself rather than checking for an impaction.
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