A Patient Is Unable to Read the 20/100 Line on the Snellen

question 25

Multiple Choice

A patient is unable to read the 20/100 line on the Snellen chart.The nurse would:

• A)refer the patient to an ophthalmologist or optometrist for further evaluation.
• B)assess whether the patient can count the nurse's fingers when they are placed in front of his or her eyes.
• C)ask the patient to put on his or her reading glasses and attempt to read the Snellen chart again.
• D)shorten the distance between the patient and the chart,and ask him or her to read the smallest line of print possible.

Describe the impact of genetic drift, founder effects, and population bottlenecks on genetic diversity.

Explain the concept of genotype, allele frequencies, and the Hardy-Weinberg equilibrium in populations.

Identify factors that cause deviations from Hardy-Weinberg equilibrium and their implications for population genetics.

Examine how gene flow and genetic drift contribute to the genetic makeup of populations.

---

Definitions:

Prefrontal Cortex

The front part of the frontal lobes of the brain, involved in complex cognitive behavior, personality expression, decision making, and moderating social behavior.

Executive Functioning

A set of cognitive processes including working memory, flexible thinking, and self-control, that are necessary for managing oneself and one's resources to achieve a goal.

Forebrain

refers to the anterior part of the brain, including the cerebral hemispheres, thalamus, and hypothalamus, responsible for complex behaviors and functions.

Memory

The mental capability to encode, store, and retrieve information, ranging from personal experiences to knowledge of facts.