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The nurse reviews the client's most recent blood gas results that include a pH of 7.43, PCO2 of 31 mm Hg, and HCO3 of 21 mEq/L. Based on these results, the nurse determines that which acid-base imbalance is present?
- A. Compensated metabolic acidosis
- B. Compensated respiratory alkalosis
- C. Uncompensated respiratory acidosis
- D. Uncompensated metabolic alkalosis
Correct Answer: B
Rationale: The normal pH is 7.35 to 7.45, the normal PCO2 is 35 to 45 mm Hg, and the normal HCO3 is 22 to 27 mEq/L. The pH is elevated in alkalosis and low in acidosis. In a respiratory condition, the pH and the PCO2 move in opposite directions; that is, the pH rises and the PCO2 drops (alkalosis) or vice versa (acidosis). In a metabolic condition, the pH and the bicarbonate move in the same direction; if the pH is low, the bicarbonate level will be low also. In this client, the pH is at the high end of normal, indicating compensation and alkalosis. The PCO2 is low, indicating a respiratory condition (opposite direction of the pH).
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A client has fallen and sustained a leg injury. Which question should the nurse ask to help determine if the client sustained a fracture?
- A. Is the pain a dull ache?
- B. Is the pain sharp and continuous?
- C. Does the discomfort feel like a cramp?
- D. Does the pain feel like the muscle was stretched?
Correct Answer: B
Rationale: Fracture pain is generally described as sharp, continuous, and increasing in frequency. Bone pain is often described as a dull, deep ache. Muscle injury is often described as an aching or cramping pain, or soreness. Strains result from trauma to a muscle body or the attachment of a tendon from overstretching or overextension.
A client has undergone angioplasty of the iliac artery. Which technique should the nurse perform to best detect bleeding from the angioplasty in the region of the iliac artery?
- A. Palpate the pedal pulses.
- B. Measure the abdominal girth.
- C. Assess the client about the level of pain in the area.
- D. Auscultate over the iliac area with a Doppler device.
Correct Answer: B
Rationale: Bleeding after iliac artery angioplasty causes blood to accumulate in the retroperitoneal area. This can most directly be detected by measuring abdominal girth. Palpation and auscultation of pulses determine patency. Assessment of pain is routinely done, and mild regional discomfort is expected.
An adolescent is hospitalized with a diagnosis of Rocky Mountain spotted fever (RMSF). The nurse anticipates that which medication will be prescribed?
- A. Ganciclovir
- B. Amantadine
- C. Doxycycline
- D. Amphotericin B
Correct Answer: C
Rationale: The nursing care of an adolescent with RMSF includes the administration of doxycycline. An alternative medication is chloramphenicol. Ganciclovir is used to treat cytomegalovirus. Amantadine is used to treat Parkinson's disease. Amphotericin B is used for fungal infections.
A client, admitted to the hospital for evaluation of recurrent runs of ventricular tachycardia, is scheduled for electrophysiology studies (EPS). Which statement should the nurse include in a teaching plan for this client?
- A. You will continue to take your medications until the morning of the test.
- B. You will be sedated during the procedure and will not remember what has happened.
- C. This test is a noninvasive method of determining the effectiveness of your medication regimen.
- D. The test uses a special wire to increase the heart rate and produce the irregular beats that cause your signs and symptoms.
Correct Answer: D
Rationale: The purpose of EPS is to study the heart's electrical system. During this invasive procedure, a special wire is introduced into the heart to produce dysrhythmias. To prepare for this procedure, the client should be NPO for 6 to 8 hours before the test, and all antidysrhythmics are held for at least 24 hours before the test to study the dysrhythmias without the influence of medications. Because the client's verbal responses to the rhythm changes are extremely important, sedation is avoided if possible.
Twelve hours after delivery, the nurse assesses the client for uterine involution. The nurse determines that the uterus is progressing normally toward its prepregnancy state when palpation of the client's fundus is at which level?
- A. At the umbilicus
- B. One finger breadth below the umbilicus
- C. Two finger breadths below the umbilicus
- D. Midway between the umbilicus and the symphysis pubis
Correct Answer: A
Rationale: The term 'involution' is used to describe the rapid reduction in size and the return of the uterus to a normal condition similar to its nonpregnant state. Immediately after the delivery of the placenta, the uterus contracts to the size of a large grapefruit. The fundus is situated in the midline between the symphysis pubis and the umbilicus. Within 6 to 12 hours after birth, the fundus of the uterus rises to the level of the umbilicus. The top of the fundus remains at the level of the umbilicus for about a day and then descends into the pelvis approximately one finger breadth on each succeeding day.