A charge nurse is providing teaching to a newly licensed nurse who is caring for a client who has postpartum hemorrhagic shock.
Which of the following statements should the charge nurse make?
Manifestations of shock might not appear until a client loses 20% of their blood volume.
Hemorrhagic shock will cause an increase in a client's serum pH.
The most accurate indication of organ perfusion is a client's urine output.
An infusion of 1 mL of lactated Ringers is given for each 1 mL of blood loss.
The Correct Answer is C
The correct answer is Choice C
Choice A rationale: Clinical manifestations of hypovolemic shock typically begin when approximately 15% to 30% of total blood volume is lost. In pregnancy, total blood volume increases by about 30% to 50%, so signs may be masked initially. However, waiting until 20% loss to expect symptoms is misleading. Tachycardia, pallor, and hypotension may appear earlier. Therefore, this statement underestimates the sensitivity of maternal physiology to blood loss and is not scientifically accurate.
Choice B rationale: Hemorrhagic shock leads to tissue hypoperfusion and anaerobic metabolism, resulting in lactic acid accumulation and metabolic acidosis. This causes a decrease in serum pH, not an increase. Normal serum pH ranges from 7.35 to 7.45. In shock states, pH often drops below 7.35, indicating acidosis. An increase in pH would suggest alkalosis, which is not consistent with the pathophysiology of hemorrhagic shock. Thus, this statement contradicts basic acid-base science.
Choice C rationale: Urine output is a direct and sensitive indicator of renal perfusion and overall organ perfusion. The kidneys require adequate blood flow to maintain glomerular filtration. In shock, decreased cardiac output reduces renal perfusion, leading to oliguria. Normal urine output is ≥30 mL/hr. Persistent reduction below this threshold reflects compromised perfusion. Unlike blood pressure or heart rate, urine output is less influenced by compensatory mechanisms, making it a reliable marker of end-organ function.
Choice D rationale: Fluid resuscitation in hemorrhagic shock typically involves a 3:1 ratio of isotonic crystalloid (e.g., lactated Ringer’s) to blood loss volume. This accounts for the distribution of fluid into the interstitial and intracellular compartments. Administering only 1 mL of fluid per 1 mL of blood loss is insufficient to restore intravascular volume. The 3:1 replacement rule is based on fluid dynamics and vascular compartmentalization. Therefore, this statement misrepresents standard resuscitation protocols.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
A hematoma presents as a localized collection of blood outside the blood vessels, causing a purplish discoloration and swelling, often resulting from trauma during delivery.
Choice B rationale
Retained placental fragments may cause postpartum hemorrhage and infection but would not present as a localized purplish swelling on the perineum.
Choice C rationale
A laceration would involve a tear in the tissue, causing bleeding and pain, but not necessarily a purplish discoloration with localized swelling unless associated with a hematoma.
Choice D rationale
Ecchymosis refers to bruising but is typically a more diffuse discoloration rather than a localized swelling and purplish area as seen with a hematoma.
Correct Answer is D
Explanation
Choice A rationale
Elevating the head of the client’s bed is not indicated in this situation and does not address the issue of excessive bleeding postpartum.
Choice B rationale
Administering terbutaline, a medication used to manage preterm labor, is not relevant in the context of postpartum hemorrhage and excessive bleeding.
Choice C rationale
Initiating oxygen at 2 L/min via nasal cannula may help with oxygenation but does not address the primary issue of excessive postpartum bleeding.
Choice D rationale
Initiating an infusion of oxytocin is the correct action as it helps contract the uterus and reduce postpartum bleeding, making it a crucial step in managing this situation.
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