The germ layers of the embryo are: (Select all that apply.)

Endoderm

Mesoderm

Ectoderm

Epidermis

Hypodermis

Answer and Explanation

Correct Answer : A,B,C

A. Endoderm – Correct; this layer develops into the gastrointestinal tract, liver, pancreas, and lungs.
B. Mesoderm – Correct; this layer forms the muscles, bones, heart, and blood vessels.
C. Ectoderm – Correct; this layer develops into the skin, nervous system, and sensory organs.
D. Epidermis – Incorrect; the epidermis is derived from the ectoderm, but it is not a germ layer itself.
E. Hypodermis – Incorrect; the hypodermis (subcutaneous tissue) is also not a germ layer.

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Correct Answer is ["B","C","E"]

Explanation

A. Hormonal imbalances – Incorrect; while maternal hormones can impact fetal growth, they are not classified as teratogens.

B. Chemicals – Correct; drugs, alcohol, and toxins (e.g., thalidomide, lead, mercury) can cause birth defects.

C. Environmental – Correct; radiation and pollutants can affect fetal development.

D. Emotional stress – Incorrect; while stress affects pregnancy outcomes, it is not classified as a teratogen.

E. Infections – Correct; infections such as rubella, toxoplasmosis, and syphilis can cause severe congenital abnormalities.

F. Physical trauma – Incorrect; trauma can harm the fetus but is not a teratogen.

A. The child develops new interests and hobbies B. The child starts sucking their thumb again C. The child becomes more independent in self-care activities D. The child experiences an increase in appetite

Correct Answer is B

Explanation

A. The child develops new interests and hobbies. – Incorrect; this is a sign of maturity, not regression.

B. The child starts sucking their thumb again. – Correct; regression is a temporary return to earlier behaviors (e.g., thumb-sucking, bedwetting) due to stress.

C. The child becomes more independent in self-care activities. – Incorrect; increased independence is a sign of maturity, not regression.

D. The child experiences an increase in appetite. – Incorrect; increased appetite is not a typical sign of regression.

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The germ layers of the embryo are: (Select all that apply.)

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Naxlex Comprehensive Predictor Exams

Developing organs and body systems are highly susceptible to teratogens, which can cause major abnormalities. These teratogens usually fall into one of three categories: (Select all that apply.)

Correct Answer is ["B","C","E"]

Explanation

When a child is hospitalized, which of the following would be an example of regression?

Correct Answer is B

Explanation

A nurse is providing instructions for a client at 4 weeks postpartum visit, the client should contact her provider for which of the following findings?

A nurse is reinforcing teaching with a client about how to reduce the risk of giving birth to a newborn who has a neural tube defect. Which of the following instructions should the nurse include in the teaching?

A 32-year-old female is currently 11 weeks pregnant. She has no living children. She reports that she had two miscarriages at 9 and 12 weeks gestation. What is her GTPAL

A nurse is collecting data from a postpartum client and finds a large amount of lochia rubra with several clots on the client's perineal pad. Which of the following actions should the nurse take first?

The ingestion of nonfood substances during pregnancy that can lead to iron deficiency anemia and other nutritional deficiencies and requires follow-up is known as?

What is a transitional object in the hospital to a child?

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In which stage and phase of labor is the client who is at 7 cm of cervical dilation and 100% effacement, with the fetus at 1 station and intact amniotic membranes, and reporting the urge to push?