Parenteral anticoagulants prevent the formation of which product as the final step of clotting?

Hematoma under the skin
Hematoma is a collection of blood under the skin. This is an adverse reaction and may indicate that activated partial thromboplastin time (aPTT) values are highly elevated. The health care provider should be notified for any bleeding. Reversal drugs, such as protamine sulfate, may need to be given.

Blood in the urine
Blood in the urine is an adverse effect of heparin therapy and may indicate that aPTT values are highly elevated. The health care provider should be notified for any bleeding. Reversal drugs, such as protamine sulfate, may need to be given

Bleeding from the gum
Bleeding from the gums is an adverse effect of heparin therapy and may indicate that aPTT values are highly elevated. The health care provider should be notified for any bleeding. Reversal drugs, such as protamine sulfate, may need to be given.

Chills and fever
Chills and fever are indications for possible infection or hypersensitivity reactions. Heparin may need to be discontinued. The health care provider must be notified.

Which is a parenteral anticoagulant?

When do you use parenteral anticoagulants?

How do anticoagulants inhibit clot formation?

Which anticoagulant is used to prevent intravascular clotting?