What is the rate on the rhythm strip in the image below?
90
110
73
50
The Correct Answer is A
A. To determine the heart rate from a rhythm strip, you can count the number of R-R intervals in a set time frame (typically 6 seconds) and multiply by 10 to convert to beats per minute. If the rhythm is regular, you can also use the 300 method by dividing 300 by the number of large squares between R waves. In this case, the rate is calculated to be 90 beats per minute.
B. A heart rate of 110 beats per minute would be classified as tachycardia and is not supported by the observed intervals.
C. A heart rate of 73 beats per minute would be a normal resting heart rate but does not match the calculation from the rhythm strip.
D. A heart rate of 50 beats per minute would indicate bradycardia, which is not reflected in this rhythm strip.
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Correct Answer is A
Explanation
A. Respiratory acidosis: The pH is low (indicating acidosis), and the Paco₂ is elevated, which signifies that carbon dioxide retention is causing the acidosis. This pattern indicates respiratory acidosis, as the elevated HCO₃ suggests a compensatory response.
B. Respiratory alkalosis: Respiratory alkalosis would show a high pH with a low Paco₂. This is not consistent with the client’s lab results.
C. Metabolic acidosis: Metabolic acidosis would show a low pH with a low HCO₃. In this case, the HCO₃ is slightly elevated, ruling out metabolic acidosis.
D. Metabolic alkalosis: Metabolic alkalosis would show a high pH with an elevated HCO₃, which does not match the client’s results.
Correct Answer is ["B","D","E","F"]
Explanation
A. Hypoactive oil and sweat glands: Pregnancy typically causes increased activity in oil and sweat glands, not decreased.
B. Increased skin pigmentation: Increased pigmentation is common during pregnancy, often affecting areas like the areolas and abdomen.
C. Persistent migraine headaches: While some women may experience headaches in pregnancy, they are not an expected or typical finding and may require further assessment.
D. Facial edema: Mild facial edema can occur as pregnancy progresses, especially due to increased blood volume and fluid retention.
E. Melasma: Melasma, or "mask of pregnancy," is a common finding characterized by dark patches on the face due to hormonal changes.
F. Linea nigra: Linea nigra is a dark line that often appears on the abdomen during pregnancy as a result of hormonal changes.