A nurse is assessing a newborn.
Which of the following findings indicates a need to check the newborn's blood glucose level for hypoglycemia?

Choice A rationale: A shrill, high-pitched cry is more commonly associated with increased intracranial pressure or neonatal abstinence syndrome (withdrawal) rather than hypoglycemia. While a hypoglycemic infant may be irritable, their cry is typically described as weak or absent due to low energy reserves.

Choice B rationale: Weak peripheral pulses are a sign of poor perfusion or cardiovascular compromise, such as coarctation of the aorta or neonatal shock. Hypoglycemia primarily affects neurological and muscular function rather than directly causing a decrease in pulse strength.

Choice C rationale: Yellowish skin, or jaundice, is caused by elevated bilirubin levels (hyperbilirubinemia). While severe jaundice can lead to neurological issues, it is a separate metabolic concern from blood glucose instability.

Choice D rationale: Hypotonia, or "floppiness," is a classic clinical manifestation of neonatal hypoglycemia. When the brain and muscles are deprived of adequate glucose, the newborn lacks the energy to maintain normal muscle tone. Other key signs include jitteriness, lethargy, poor feeding, and a subnormal temperature.

Choice A rationale

Tachycardia is a common finding in hyperemesis gravidarum due to fluid volume deficit. Significant and persistent vomiting leads to hypovolemia, which triggers a compensatory increase in heart rate to maintain cardiac output and tissue perfusion. The body attempts to compensate for reduced circulating blood volume by increasing the rate at which blood is pumped.

Choice B rationale

Dry mucous membranes are a direct clinical sign of dehydration, which is a hallmark of hyperemesis gravidarum. Prolonged and severe vomiting leads to significant fluid loss, depleting the body's water content. This desiccation is visibly manifested in the oral cavity as dry and sticky mucous membranes, indicating intracellular and extracellular fluid deficit.

Choice C rationale

Poor skin turgor, characterized by skin that remains tented when pinched, is another objective indicator of dehydration. The loss of interstitial fluid due to excessive vomiting reduces the elasticity and plumpness of the skin. This finding reflects a significant depletion of fluid volume within the subcutaneous tissues.

Choice D rationale

Polyuria, meaning excessive urination, is not a typical finding in hyperemesis gravidarum. Instead, severe vomiting and dehydration would lead to oliguria (decreased urine output) as the kidneys attempt to conserve fluid to compensate for the significant fluid losses. The body's priority is fluid retention.

Choice E rationale

Hypertension is generally not associated with hyperemesis gravidarum. Due to significant fluid loss and dehydration, clients with hyperemesis gravidarum are more likely to experience orthostatic hypotension or even profound hypotension as a result of hypovolemia. The decreased circulating blood volume leads to reduced vascular resistance and blood pressure.